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  1. #1
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    Seat post slipping

    Following a move to the countryside I have just recently purchased a Spec Crux and I am just getting use to riding bridleways and firepaths and being shaken about.

    My querry is about the the seat post. The bridelways I am cycling have been rutted by tractors and are pretty rough to cycle, today was excetionally rough going and I noticed that my seat post had slipped. This may have been because I had fiddled with it earlier on in the ride, because I think that it had slipped from the previous ride and had not tighted it enough, but it may not. My question is, Is seat post slippage something had I should expect following rough riding

    Is there anything else I should keep any eye on following a rough ride

  2. #2
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    Tighten the clamp more and/or add some friction paste.

  3. #3
    coprolite fietsbob's Avatar
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    Is seat post slippage something had I should expect following rough riding
    Cyclocross races require a flying remount, at a full gallop,
    many times an hour, a typical race length, so the seatpost had better not slip down,
    JRA on a casual ride, on a horse trail.

    If it does , return to the Dealer and talk to them..
    Last edited by fietsbob; 09-20-11 at 10:50 AM.

  4. #4
    Senior Member
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    Quote Originally Posted by dmcgoy View Post
    Tighten the clamp more and/or add some friction paste.
    I've been having a problem with this myself, despite tightening the clamp as much as seems possibly safe (and cleaning the post). What is this friction paste?

  5. #5
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    Thanks for the advice.

    Have applied Fiber Grip from Finish Line and think I have tightened it significantly more than before, will find out on tomorrows ride. It states tighten to 6.2, but I don't have a torque guage so have been doing it by feel.

    I think I also have new bike syndrome, whilst my mind says tighten it and ride it, its a bike and meant to be ridden hard off road, part of me still thinks it I might break it.

  6. #6
    Team Water Andy_K's Avatar
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    I'd suggest you invest in a torque wrench. Clamping down carbon parts is no place for guessing. There's a cheap and nifty little tool you can get, but the ones I've seen only have 4mm bits and click at 5 Nm (though that's probably good, even though Speciailized says you can go higher).

    You can get a cheap torque wrench fron Harbor Freight for around $15: http://www.harborfreight.com/1-4-qua...ench-2696.html

  7. #7
    George Krpan
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    If nothing else works including taking it back to the store where you bought it, try using a seatpost that is 0.2mm larger in diameter.
    This worked for me.

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