43cm Condor Vintage British Mountain Bike Frame

✓ Original vintage frame - built in the 1980s
✓ Thoroughly checked over & photographed in detail
✓ Worldwide shipping

A London institution, Condor Cycles have had premises on Gray's Inn Road for nearly 75 years, having produced hand made bikes for pop stars, olympians and world champions alike. Originally a Triumph dealer, the shop that was to become Condor Cycles was started by Monty Young with some help from Harry Rensch, building hand made frames just down the road from Pedal Pedlar HQ back in 1948. After a brief hiatus for Monty to do some national service, Condor employed the highly skilled BIll Hurlow to build their bikes in 1954, continueing to do so until 1968. With intricately cut fancy lugs the Hurlow built Condors are now highly prized. Through the next few decades Condor continued to nurture new British racing talent and build high end bikes, they also managed to keep up with the industry and adapt their bikes to the new materials making bikes from aluminium and carbon. Despite a shift to mass producing bikes in the far east, Condor still produce custom and off the peg steel frames at their facility in Italy.

Though best known for their road bikes Condor built a number of mountain bikes through the 1980s, offering custom and semi-custom options. This frameset probably dates from 1989, the Reynolds 531 All Terrain decal in this style was used up until then and the frame arrived with us with a a few first generation Campagnolo Euclid parts, which was available at the time. As you'd expect from a frame builder of Condor's repute it is very nicely made and would have been a very expensive custom bike back in the day. There is a small dent on the top tube and some slight deformation to the seat tube below the seat clamp, none of which affect the structural integrity.

The frame's been carefully checked by one of our mechanics to confirm the alignment's correct and there's no damage to the threads. If there are any minor issues worth noting we will do so in the overview section below. Please take a good look at the detailed photos so you can see the cosmetic condition of the frame before you buy.


Condition Notes - Dent on top of top tube and the top of the seat tube is slightly mis-shaped a few inches down, likely from a seatpost removal. This doesn't affect the frame in any way but cosmetically is visible.
Era - 1980s
Country - British
Frame Material - Steel
Tubing - Reynolds 531 All Terrain
Weight - 3.125 kg
Stock Code - U-F-M6V


Size Guide* - N/A
Seat Tube (ctc) - 43 cm
Top Tube (ctc) - 54.5 cm
Head Tube - 134 mm
Chainstay Length - 42.5 cm
Wheelbase - 102 cm

*This is just a guide, not a guarantee the frame will fit as every rider is different. If you're unsure of your size we'd always recommend trying out a bike with similar frame dimensions first.


Rear Spacing - 126 mm
Front Spacing - 100 mm
Seatpost Diameter - 27.0 mm
Wheel Size - 26"
Brake Fixing - Cantilever / V-Brake
Bottom Bracket Thread - English/British/ISO Thread
Headset Thread - Standard ISO (24 TPI - British/Italian)
Headset Stack Height - 33 mm
Fork Crown Race - 26.4 mm (ISO)
Headtube Internal Diameter - 30.2 mm
Steerer Internal Diameter - 22.2 mm (Standard)


We've been safely sending orders around the world since 2010. There's a handy shipping calculator on the shopping cart page so you can see the cost of postage as soon as you've added it to your basket. Your order will be carefully packed and sent with tracking & insurance, we despatch most orders within 2-3 days but larger items and orders placed before the weekend can take an extra day or two to process.

We accept returns, please notify us within 14 days and ensure the item arrives back with us no later than 30 days after the order was received.

We don't charge VAT, however, if buying from outside of the UK please remember that there may be import fees to pay directly to the delivery company before receiving the order. Unfortunately we can’t advise on the exact costs as it varies from country to country, so please check your national rates before purchasing.


Seat Tube (ctc) - we measure from the centre of the bottom bracket shell up to the centre line of the top tube to give a consistent measurement regardless of frame design (ctc means centre to centre).

Top Tube (ctc) - this is measured from the centre of the head tube to the centre of the seat tube, along the centre of the top tube.

Chainstay Length - measured from the centre of the bottom bracket shell to the centre point of the rear dropout.

Wheelbase - measured from the centre of the front fork dropout to the centre point of the rear dropout.

Front & Rear Spacing - measured from the inside of one dropout to the other. The dropouts on steel frames can be stretched or squeezed a few mm but it's always best to avoid this if possible, aluminium or carbon frames should never be stretched.