£97.50 £130.00
Campagnolo Record front derailleur / mech, hailing from Italy and in production during the 1950s. Made from steel/aluminium and weighing in at 111 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong front mech!
The front derailleur / mech's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Chainset Type - the number of chainrings the derailleur was designed to work with. ‘Double’ derailleurs are actually capable of working on ‘triple’ chainsets but they may struggle when shifting, especially if there’s a big step down from the middle to inner ring, so it’s better to match these correctly.
Frame Fixing - the way the derailleur fixes to the frame, if you have a tab on your frame to mount the derailleur to you need braze-on. If there’s no tab then you require a clamp-on type (also referred to as band-on or clip-on), these come in different sizes to match the diameter of your seat tube.
Pull Type - the direction of which the cable needs to ‘pull’ the mech in order to shift. If your cable runs up to the derailleur from the bottom bracket area then you need bottom pull, if your cable comes down from above you need top pull. Some later derailleurs can be used for either setups, these are referred to as dual pull.
Designated Speed (9 Speed & Above) - the speed of the chain that the mech was designed to be used with. This only becomes relevant for mechs marketed as 9 speed or above when chains became narrower, as the derailleur cage plates became marginally narrower too. We refer to it as ‘designated’ speed as technically you can use (almost) any derailleur with any chain, however if you want optimum performance it’s best to stay close to the manufacturers recommendations.
Indexing System (Shimano Only) - this is only applicable when using Shimano shifters that have an indexed left shifter such as STI or Rapidfire. For the indexing to work correctly when using these shifters the derailleur and shifters must be of the same type, so Shimano drop bar shifters need to be matched with a Shimano ‘road’ derailleur, and Shimano flat bar shifters must be used with Shimano ‘MTB’ derailleurs.
£93.75 £125.00
Campagnolo Nuovo / Super Record front derailleur / mech, hailing from Italy and dating back to 1979. Made from aluminium/steel and weighing in at 89 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong front mech!
The front derailleur / mech's been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Chainset Type - the number of chainrings the derailleur was designed to work with. ‘Double’ derailleurs are actually capable of working on ‘triple’ chainsets but they may struggle when shifting, especially if there’s a big step down from the middle to inner ring, so it’s better to match these correctly.
Frame Fixing - the way the derailleur fixes to the frame, if you have a tab on your frame to mount the derailleur to you need braze-on. If there’s no tab then you require a clamp-on type (also referred to as band-on or clip-on), these come in different sizes to match the diameter of your seat tube.
Pull Type - the direction of which the cable needs to ‘pull’ the mech in order to shift. If your cable runs up to the derailleur from the bottom bracket area then you need bottom pull, if your cable comes down from above you need top pull. Some later derailleurs can be used for either setups, these are referred to as dual pull.
Designated Speed (9 Speed & Above) - the speed of the chain that the mech was designed to be used with. This only becomes relevant for mechs marketed as 9 speed or above when chains became narrower, as the derailleur cage plates became marginally narrower too. We refer to it as ‘designated’ speed as technically you can use (almost) any derailleur with any chain, however if you want optimum performance it’s best to stay close to the manufacturers recommendations.
Indexing System (Shimano Only) - this is only applicable when using Shimano shifters that have an indexed left shifter such as STI or Rapidfire. For the indexing to work correctly when using these shifters the derailleur and shifters must be of the same type, so Shimano drop bar shifters need to be matched with a Shimano ‘road’ derailleur, and Shimano flat bar shifters must be used with Shimano ‘MTB’ derailleurs.
£18.75 £25.00
Maloya Elite tyre, hailing from Switzerland and in production during the 1980s. Made from rubber and weighing in at 385 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong tyre!
The tyre's been thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Size - this is the manufacturer’s sizing and must match the size or your wheel. This can be confusing as tyres have had different sizing systems over the years, and there are many (sometimes conflicting) sizes available. For this reason it’s important to check the ISO diameter too for clarification, especially for 26” wheels.
Bike Type - the type of bike the tyre was designed to be used on. Road tyres will generally be narrow with minimal tread, touring tyres wider with a bit more grip in the tread, and cyclocross & MTB tyres wider still (especially the latter), with a much more pronounced tread pattern.
ISO Diameter - this relates to the diameter of the wheel rim at the point where the tyre is seated (bead seat diameter). This is a universal measurement, often displayed on tyres as 28-622 or similar, 28 referring to the tyre width and 622 being the ISO diameter in millimetres.
TPI - stands for threads per inch and refers to the thread count of the tyre casing. A high thread count usually means a more supple and lighter tyre, this can be anything as high as 320 tpi. We can’t always provide this information however, as it’s not always possible to know for sure.
£67.50 £90.00
Gazelle Vuelta tyres, hailing from The Netherlands and in production during the 1980s. Made from rubber and weighing in at 585 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong tyres!
The tyres have been thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Size - this is the manufacturer’s sizing and must match the size or your wheels. This can be confusing as tyres have had different sizing systems over the years, and there are many (sometimes conflicting) sizes available. For this reason it’s important to check the ISO diameter too for clarification, especially for 26” wheels.
Bike Type - the type of bike the tyres were designed to be used on. Road tyres will generally be narrow with minimal tread, touring tyres wider with a bit more grip in the tread, and cyclocross & MTB tyres wider still (especially the latter), with a much more pronounced tread pattern.
ISO Diameter - this relates to the diameter of the wheel rims at the point where the tyres are seated (bead seat diameter). This is a universal measurement, often displayed on tyres as 28-622 or similar, 28 referring to the tyre width and 622 being the ISO diameter in millimetres.
TPI - stands for threads per inch and refers to the thread count of the tyre casing. A high thread count usually means a more supple and lighter tyre, this can be anything as high as 320 tpi. We can’t always provide this information however, as it’s not always possible to know for sure.
£56.25 £75.00
Campagnolo Croce d'Aune seatpost, hailing from Italy and in production from the 1980s to the 1990s. Made from aluminium and weighing in at 260 grams - pretty lightweight for seatposts at that time. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong seatpost!
The seatpost's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Seatpost Diameter - this needs to match the internal diameter of your frame’s seat tube closely, it should be possible to insert the seatpost without force but the fit should be tight enough so it doesn’t just drop in, with no play once inserted. If you have a post that fits the measurement should be stamped somewhere near the bottom., otherwise you’ll need to measure with a caliper or seatpost sizing tool as seatpost diameters go up in 0.2 mm increments.
Length (Centre of Rails to Base) - measured from where the centre of the saddle rails will sit once installed, all the way to the bottom of the seatpost. Normally there’s a mark to tell you how much of the seatpost needs to be inserted in the frame, however this isn’t always the case so we’d recommend allowing a minimum of 6 cm.
£71.25 £95.00
Cambio Rino Crono seatpost, hailing from Italy and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 219 grams - incredibly lightweight for seatposts at that time. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong seatpost!
The seatpost's been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Seatpost Diameter - this needs to match the internal diameter of your frame’s seat tube closely, it should be possible to insert the seatpost without force but the fit should be tight enough so it doesn’t just drop in, with no play once inserted. If you have a post that fits the measurement should be stamped somewhere near the bottom., otherwise you’ll need to measure with a caliper or seatpost sizing tool as seatpost diameters go up in 0.2 mm increments.
Length (Centre of Rails to Base) - measured from where the centre of the saddle rails will sit once installed, all the way to the bottom of the seatpost. Normally there’s a mark to tell you how much of the seatpost needs to be inserted in the frame, however this isn’t always the case so we’d recommend allowing a minimum of 6 cm.
£168.75 £225.00
Campagnolo Nuovo Super Record seatpost, hailing from Italy and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 199 grams - incredibly lightweight for seatposts at that time. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong seatpost!
The seatpost's been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Seatpost Diameter - this needs to match the internal diameter of your frame’s seat tube closely, it should be possible to insert the seatpost without force but the fit should be tight enough so it doesn’t just drop in, with no play once inserted. If you have a post that fits the measurement should be stamped somewhere near the bottom., otherwise you’ll need to measure with a caliper or seatpost sizing tool as seatpost diameters go up in 0.2 mm increments.
Length (Centre of Rails to Base) - measured from where the centre of the saddle rails will sit once installed, all the way to the bottom of the seatpost. Normally there’s a mark to tell you how much of the seatpost needs to be inserted in the frame, however this isn’t always the case so we’d recommend allowing a minimum of 6 cm.
£56.25 £75.00
Zeus Gran Sport seatpost, hailing from Spain and in production during the 1970s. Made from steel and weighing in at 318 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong seatpost!
The seatpost's been carefully cleaned, thoroughly checked by one of our mechanics and graded as mint condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Seatpost Diameter - this needs to match the internal diameter of your frame’s seat tube closely, it should be possible to insert the seatpost without force but the fit should be tight enough so it doesn’t just drop in, with no play once inserted. If you have a post that fits the measurement should be stamped somewhere near the bottom., otherwise you’ll need to measure with a caliper or seatpost sizing tool as seatpost diameters go up in 0.2 mm increments.
Length (Centre of Rails to Base) - measured from where the centre of the saddle rails will sit once installed, all the way to the bottom of the seatpost. Normally there’s a mark to tell you how much of the seatpost needs to be inserted in the frame, however this isn’t always the case so we’d recommend allowing a minimum of 6 cm.
£15.00 £20.00
Specialites T.A. 'Plum' bottle cage, hailing from France and in production during the 1980s. The perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica or a similar vintage event, this is of the correct era, so rest assured the pre-1987 police won't lock you up for having the wrong bottle carrier!
The bottle cage has been checked for damage, thoroughly cleaned and graded as very good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
TECHNICAL INFO
Cage Fixing - most bottle cages will be designed to fix to the frame, although some rare older ones mount to the handlebars and/or stem. If your frame doesn't have any bottle cage braze-ons to fix to you'll need a clamp-on bottle cage.
Bottle Size - almost all cycling bottles measure just under 75 mm in diameter so this is the standard bottle cage size, the only rather rare exceptions are some old Elite bottles that require a 66 mm cage, the more recent oversized ones and of course the funny shaped aero ones that only accept the bottle they were made for.
£18.75 £25.00
Specialites T.A. 'Professional' bottle cage, hailing from France and in production during the 1980s. The perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica or a similar vintage event, this is of the correct era, so rest assured the pre-1987 police won't lock you up for having the wrong bottle carrier!
The bottle cage has been checked for damage, thoroughly cleaned and graded as very good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
TECHNICAL INFO
Cage Fixing - most bottle cages will be designed to fix to the frame, although some rare older ones mount to the handlebars and/or stem. If your frame doesn't have any bottle cage braze-ons to fix to you'll need a clamp-on bottle cage.
Bottle Size - almost all cycling bottles measure just under 75 mm in diameter so this is the standard bottle cage size, the only rather rare exceptions are some old Elite bottles that require a 66 mm cage, the more recent oversized ones and of course the funny shaped aero ones that only accept the bottle they were made for.
£11.25 £15.00
Unbranded vintage bottle cage, most likely in production during the 1980s. The perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica or a similar vintage event, this is of the correct era, so rest assured the pre-1987 police won't lock you up for having the wrong bottle carrier!
The bottle cage has been checked for damage, thoroughly cleaned and graded as very good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
TECHNICAL INFO
Cage Fixing - most bottle cages will be designed to fix to the frame, although some rare older ones mount to the handlebars and/or stem. If your frame doesn't have any bottle cage braze-ons to fix to you'll need a clamp-on bottle cage.
Bottle Size - almost all cycling bottles measure just under 75 mm in diameter so this is the standard bottle cage size, the only rather rare exceptions are some old Elite bottles that require a 66 mm cage, the more recent oversized ones and of course the funny shaped aero ones that only accept the bottle they were made for.
£11.25 £15.00
Cobra bottle cage, hailing from Italy and in production during the 1980s. The perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica or a similar vintage event, this is of the correct era, so rest assured the pre-1987 police won't lock you up for having the wrong bottle carrier!
The bottle cage has been checked for damage, thoroughly cleaned and graded as good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
TECHNICAL INFO
Cage Fixing - most bottle cages will be designed to fix to the frame, although some rare older ones mount to the handlebars and/or stem. If your frame doesn't have any bottle cage braze-ons to fix to you'll need a clamp-on bottle cage.
Bottle Size - almost all cycling bottles measure just under 75 mm in diameter so this is the standard bottle cage size, the only rather rare exceptions are some old Elite bottles that require a 66 mm cage, the more recent oversized ones and of course the funny shaped aero ones that only accept the bottle they were made for.
£15.00 £20.00
Cosmos bottle cage, hailing from Italy and in production during the 1980s. The perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica or a similar vintage event, this is of the correct era, so rest assured the pre-1987 police won't lock you up for having the wrong bottle carrier!
The bottle cage has been checked for damage, thoroughly cleaned and graded as excellent condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
TECHNICAL INFO
Cage Fixing - most bottle cages will be designed to fix to the frame, although some rare older ones mount to the handlebars and/or stem. If your frame doesn't have any bottle cage braze-ons to fix to you'll need a clamp-on bottle cage.
Bottle Size - almost all cycling bottles measure just under 75 mm in diameter so this is the standard bottle cage size, the only rather rare exceptions are some old Elite bottles that require a 66 mm cage, the more recent oversized ones and of course the funny shaped aero ones that only accept the bottle they were made for.
£37.50 £50.00
Paturaud Special toe clips, hailing from France and in production during the 1970s. Made from steel and weighing in at 65 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as excellent condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£18.75 £25.00
Christophe 33 / 336 toe clips, hailing from France and in production from the 1980s to the 1990s. Made from steel and weighing in at 81 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as mint condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£7.50 £10.00
Christophe 50 / 506 toe clips, hailing from France and in production from the 1980s to the 1990s. Made from steel and weighing in at 64 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as OK condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£26.25 £35.00
GB Type Professionnel toe clips, hailing from Great Britain and in production during the 1950s. Made from steel and weighing in at 64 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£7.50 £10.00
Lapize 160 toe clips, hailing from France and in production during the 1980s. Made from steel and weighing in at 48 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as OK condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£9.38 £13.00
Christophe 50 / 506 toe clips, hailing from France and in production from the 1980s to the 1990s. Made from steel and weighing in at 72 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£7.50 £10.00
ALE Art. 91 toe clips, hailing from Italy and in production from the 1970s to the 1980s. Made from steel and weighing in at 52 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as OK condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£8.63 £12.00
Christophe 50 / 506 toe clips, hailing from France and in production from the 1980s to the 1990s. Made from steel and weighing in at 75 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or any other vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe clips!
The toe clips have been cleaned, checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the shape & condition before you buy.OVERVIEW
**This is a guide based on traditional toe clip sizing for cycling shoes of the time, if you ride with chunkier shoes then we'd recommend going for a larger size. Please use this as a guide only and if possible use the length measurement provided to compare with toe clips you know fit well.
TECHNICAL INFO
Pedal Fixing - 'standard' toe clips fix to the front of the pedals, most will be of this type and work with both quill & platform pedals providing they have mounting holes in the correct place. There are also 'aero' ones that attach to the top, and side fixing versions too. 'Wide platform' fixings are similar to standard ones but the fixing holes are almost 3 inches apart.
Toe Strap Type - most toe clips are designed to accept a single toe strap, but there are some less common ones that allow two toe straps to be fitted.
Length - this is measured from the fixing end to the toe end at the most extreme points, the same way the manufacturers measure and we use this to recommend the fit if there's no size stamped on them. All length measurements are rounded to the nearest 0.5 cm.
Distance Between Fixing Bolts - we measure this distance from the centre of one hole to the next (ctc), this usually only needs to be close, not exact, providing the holes on the toe clips are oblong shaped to allow a decent amount of wiggle room (most toe clips are made this way).
£30.00 £40.00
Unbranded vintage handlebars, most likely in production from the 1960s to the 1970s. Made from steel and weighing in at 448 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong bars!
The bars have been checked, cleaned and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Width - the total width at its widest point, from end to end, rounded to the nearest 5 mm.
Clamp Size - this should match the internal diameter of your handlebar stem clamp, and should be as close as possible to ensure a good and safe fit.
Grip Diameter - the outside diameter of the area where handlebar grips are fitted, this determines not only what grips will fit but brake levers too so it's important to check if you have a specific setup in mind.
Rise/Drop - we measure this at the end of the bars, from the centre point of the clamp area to the centre of the end. This measurent can change when the bar is rotated so there is a bit of tolerance here, please use this as an approximate measurement only.
£19.13 £23.00
REG toe straps, hailing from Italy and in production from the 1960s to the 1970s. The straps are white in colour and made from leather/steel, the perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe straps!
The toe straps have been checked over, cleaned (as much as you can clean toe straps!) and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Toe Strap Type - standard toe clips are designed to accept single toe straps, but there are some that allow double toe straps to be fitted.
Strap Width - measured across one of the straps at its widest point.
Toe Strap Length - the total length including the buckle, measured to the nearest 0.5 cm.
£38.25 £45.00
Alfredo Binda Extra toe straps, hailing from Italy and in production from the 1970s to the 1980s. The straps are light brown in colour and made from leather/steel, the perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe straps!
The toe straps have been checked over, cleaned (as much as you can clean toe straps!) and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Toe Strap Type - standard toe clips are designed to accept single toe straps, but there are some that allow double toe straps to be fitted.
Strap Width - measured across one of the straps at its widest point.
Toe Strap Length - the total length including the buckle, measured to the nearest 0.5 cm.
£12.75 £15.00
Gran Premio toe straps, hailing from Italy and in production from the 1970s to the 1980s. The straps are black in colour and made from leather/steel, the perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe straps!
The toe straps have been checked over, cleaned (as much as you can clean toe straps!) and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Toe Strap Type - standard toe clips are designed to accept single toe straps, but there are some that allow double toe straps to be fitted.
Strap Width - measured across one of the straps at its widest point.
Toe Strap Length - the total length including the buckle, measured to the nearest 0.5 cm.
£29.75 £35.00
Alfredo Binda Bianchi Dino toe straps, hailing from Italy and in production from the 1970s to the 1980s. The straps are white in colour and made from leather/steel, the perfect finishing touch for your vintage bike, but great for bikes of the non-vintage variety too of course!
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, these are fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong toe straps!
The toe straps have been checked over, cleaned (as much as you can clean toe straps!) and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Toe Strap Type - standard toe clips are designed to accept single toe straps, but there are some that allow double toe straps to be fitted.
Strap Width - measured across one of the straps at its widest point.
Toe Strap Length - the total length including the buckle, measured to the nearest 0.5 cm.
£34.00 £40.00
Campagnolo Nuovo Gran Sport chainring, hailing from Italy and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 106 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£25.50 £30.00
Ofmega chainring, hailing from Italy and in production during the 1980s. Made from aluminium and weighing in at 65 grams - pretty lightweight for an outer chainring at that time. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£38.25 £45.00
Unbranded vintage chainring, most likely in production from the 1960s to the 1970s. Made from steel and weighing in at 295 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as mint condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£25.50 £30.00
Specialites T.A. Professionnel chainring, hailing from France and in production from the 1960s to the 1970s. Made from aluminium and weighing in at 79 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£42.50 £50.00
Campagnolo Record chainring, hailing from Italy and in production from the 1950s to the 1960s. Made from aluminium and weighing in at 115 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£34.00 £40.00
Sugino Mighty Competition chainring, hailing from Japan and in production from the 1960s to the 1970s. Made from aluminium and weighing in at 116 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£34.00 £40.00
Campagnolo Record chainring, hailing from Italy and in production from the 1950s to the 1960s. Made from aluminium and weighing in at 107 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as OK condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£42.50 £50.00
Campagnolo Record chainring, hailing from Italy and in production from the 1950s to the 1960s. Made from aluminium and weighing in at 105 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£34.00 £40.00
Campagnolo Super Record chainring, hailing from Italy and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 86 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as OK condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£38.25 £45.00
Campagnolo Nuovo Gran Sport chainring, hailing from Italy and in production during the 1970s. Made from aluminium and weighing in at 109 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£42.50 £50.00
Campagnolo Record chainring, hailing from Italy and in production during the 1960s. Made from aluminium and weighing in at 120 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£29.75 £35.00
Gipiemme chainring, hailing from Italy and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 98 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£72.25 £85.00
Campagnolo Super Record chainring, hailing from Italy and in production during the 1970s. Made from aluminium and weighing in at 76 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£29.75 £35.00
Sakae/Ringyo (SR) Royal chainring, hailing from Japan and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 84 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£17.00 £20.00
Specialites T.A. Professionnel chainring, hailing from France and in production from the 1960s to the 1970s. Made from aluminium and weighing in at 44 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica, Anjou Velo, Velo Retro or another similar vintage cycling event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong chainring!
The chainring's been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Tooth Count - the number of teeth on the chainring, the higher the number the harder the gear.
Between Adjacent Bolt Holes - the measurement from the centre of any bolt hole to the centre of an adjacent one, if this measurement is the same as that of your crankset and the bolt count is the same then the chainring should fit.
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter) and is the technical way to determine whether the chainring fits your crankset. To calculate, multiply the distance between adjacent holes (in mm) by 1.709 (you’ll likely need to round the resulting number up or down a little).
Chainset Type - the number of rings on the chainset it was designed to be used with. Technically this doesn't have to be adhered to, although with higher speed setups it is recommended for accurate and responsive front shifting.
Bolt Count - the number of bolts securing the chainring to the chainset. As with the BCD, this must be the same as your chainset.
Chain Width - 3/32” is the standard width for double and triple chainsets, wherease 1/8” chainrings are only found on single ring chainsets, generally for track / singlespeed use and can only be used with a wide 1/8" chain.
Intended Speed - the number of cogs at the back the chainring was designed to be used with. We refer to it as ‘intended’ speed as most double and triple chainsets will actually work with different speeds than originally intended, but the further away you get from the intended speed the more likely you are to experience minor setup issues. The exception being some chainrings intended for 10 speed use or higher, with these it’s better to stick to the intended speed.
£18.75 £25.00
Nicklin left crank arm, hailing from Great Britain and in production from the 1950s to the 1960s. Made from steel and weighing in at 296 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£13.13 £18.00
Unbranded vintage left crank arm, most likely in production from the 1950s to the 1960s. Made from steel and weighing in at 294 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£15.00 £20.00
Unbranded vintage left crank arm, most likely in production from the 1950s to the 1960s. Made from steel and weighing in at 310 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£15.00 £20.00
Unbranded vintage left crank arm, most likely in production from the 1950s to the 1960s. Made from steel and weighing in at 304 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as very good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£15.00 £20.00
Unbranded vintage left crank arm, most likely in production from the 1930s to the 1950s. Made from steel and weighing in at 254 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as poor condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£13.13 £18.00
Unbranded vintage left crank arm, most likely in production from the 1960s to the 1970s. Made from steel and weighing in at 270 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£18.75 £25.00
Sakae/Ringyo (SR) Apex left crank arm, hailing from Japan and dating back to 1978. Made from aluminium and weighing in at 171 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£30.00 £40.00
Shimano 600 EX right crank arm/spider, hailing from Japan and dating back to 1986. Made from aluminium and weighing in at 290 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Chainring Count - the number of chainrings the crank was designed to fit. Fixed gear track bikes, single-speeds and some geared bikes use a single chainring, road bikes commonly use a double (two rings) and most touring bikes and mountain bikes will use a triple chainset (three rings).
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter), and this needs to match the BCD of your chainring(s). To calculate this, measure the distance in millimeters from the centre of any chainring bolt hole to the centre of an adjacent one and multiply it by 1.709 (you’ll likely need to round the resulting number up or down a little to get your BCD measurement).
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
£30.00 £40.00
Sakae/Ringyo (SR) Apex right crank arm/spider, hailing from Japan and in production from the 1970s to the 1980s. Made from aluminium and weighing in at 249 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike too.
If you're taking part in L'Eroica or a similar vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong crank!
The crank arm has been carefully cleaned, thoroughly checked by one of our mechanics and graded as good condition, but do take a good look at the detailed photos so you can see the cosmetic condition before you buy.OVERVIEW
TECHNICAL INFO
Chainring Count - the number of chainrings the crank was designed to fit. Fixed gear track bikes, single-speeds and some geared bikes use a single chainring, road bikes commonly use a double (two rings) and most touring bikes and mountain bikes will use a triple chainset (three rings).
BCD - stands for Bolt Circle Diameter (sometimes referred to as PCD - Pitch Circle Diameter), and this needs to match the BCD of your chainring(s). To calculate this, measure the distance in millimeters from the centre of any chainring bolt hole to the centre of an adjacent one and multiply it by 1.709 (you’ll likely need to round the resulting number up or down a little to get your BCD measurement).
Crank Arm Length - this is measured from the absolute centre of the bottom bracket hole to the centre of the hole for the pedal.
Pedal Threads - the pattern of the thread that your pedals screw into, this is usually stamped on the pedals themselves and most bikes use a standard thread of 9/16” x 20 tpi. The exceptions being older French bikes, bikes with cheaper one-piece type chainsets and Shimano’s Dyna Drive system (easily identifiable as the pedal holes are about an inch wide!).
Bottom Bracket Type - ‘square taper’, as the name suggests have a square shaped axle that slots into the crank and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system. Since then, different manufacturers have introduced their own systems that are not interchangeable so you must use a crank that matches.
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