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  1. #1
    Senior Member wtgrantham's Avatar
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    Vintage Trek seat post binder bolt

    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?

    Thanks!!!

  2. #2
    Senior Member bikeman715's Avatar
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    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.
    bikeman715

  3. #3
    Old fart JohnDThompson's Avatar
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    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.

  4. #4
    Senior Member DannoXYZ's Avatar
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    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.

  5. #5
    Newbie
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    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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