£25.00
Gipiemme seat post binder bolt (or seat pin clamp bolt if you prefer), hailing from Italy and in production during the 1980s. Made from steel and weighing in at 8 grams. A fine choice for keeping your vintage bike authentic, but also great for any other compatible bike.
If you're taking part in L'Eroica or any other vintage event, this is fully compliant - so rest assured, the pre-1987 police won't lock you up for having the wrong seatpost binder bolt!
The seatpost binder bolt's been cleaned, checked 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
Clamp Opening - the minimum and maximum distance between the inside of the nut and bolt heads. The minimum is measured with the bolt tightened as much as possible (for hex head types this may mean the bolt end will stick quite far out of the nut). For the maximum opening we ensure 5-6 mm of thread remainis in the nut for a secure fixing.
Outer Diameter - the part that goes through the frame, most steel frames will take an 8 mm bolt whereas early lugged aluminium frames often have a larger hole that takes a 10 mm bolt diameter.
Bolt Fixing Type - some binder bolts have tightening mechanisms on both sides to secure the seatpost in the frame. Single sided bolts need something else to help; some have knurled parts that grip the inside of the bolt hole, others have a small notched 'key' locator that lines up with a cut-out in the frame (if you have one).
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