Bicycle Mechanics - Vintage Trek seat post binder bolt
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09-29-10, 04:44 PM
I have a 1981 Trek 710 that I bought as frame only and need to replace the binder bolt, but it is unlike any of my other bikes so I don't know what I am looking for. It is recessed on one side for the bolt head but threaded on the other side. Can anyone point me in the direction of what I should be looking for?
09-29-10, 05:45 PM
Take your bike to your LBS and they should be able to help you out. It cost around $10 for one and come in 3 sizes short ,medium ,or long . it all depend on the size of the seat stay on the frame.
09-30-10, 03:50 PM
A standard M6 allen head bolt will work; preferably stainless steel.You should be able to find a suitable bolt at any decent hardware store.
09-30-10, 05:08 PM
make sure the seatpost is the EXACT size needed. Too small will result in bending the bolt as you tighten and it may snap at the most unfortunate time.
08-10-12, 08:58 PM
Thanks JohnDThompson. Picked up 3 different lengths from Home Depot this morning. I think the 20mm will fit my '84 660 perfectly.
Appreciate the advice!
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