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  1. #1
    mtbr member
    Join Date
    Dec 2006

    Proper use Park workstand (PCS 10)

    So I finally got a workstand. I have read various opinions re: clamping carbon bikes.
    Most say do not clamp a carbon top tube in a stand. One site went so far as suggesting getting a dedicated aluminum seatpost for when you work on the bike.

    So is it OK to clamp my carbon top tube or carbon post? I'm not saying mash it down just firm enough to hold the bike.

    For what its worth my LBS does this all the time.

  2. #2
    mtbr member
    Reputation: J.B. Weld's Avatar
    Join Date
    Aug 2012
    If it were me I'd have a cheap dedicated seat post for any serious work. A real quick job I might gently clamp it on the post (using a rag of course), or just hang it from the nose of the saddle.

    I would never clamp anywhere on the frame, and if a shop did that I would never take it back there.

  3. #3
    mtbr member
    Join Date
    Apr 2012
    Clamping the frame on any bike except a gas pipe special is a huge mistake. Almost all decent quality tubing is butted, and fairly thin in the middle--not hard to crush at all. The same goes for carbon.

    It doesn't help that even the most basic clamp has a disgusting amount of leverage.

  4. #4
    Plays with tools
    Reputation: customfab's Avatar
    Join Date
    Jun 2008
    The PCS-10 clamp doesn't generate gobs of clamping force like the traditional cast aluminum clamp, so it's going to take some real effort to crush a tube. That said better safe than sorry. IMPO clamping a carbon seat post is just fine, most of the time. A notable exception would be while trying to extract a seized BB. With a little bit of common sense you'll be just fine.

  5. #5
    Dave's not here.
    Reputation: MiWolverine's Avatar
    Join Date
    Jun 2009
    I've been clamping my carbon post without any issues. Though, YMMV. I don't clamp my frame just because I never had a need to.
    I am the world champion of bad luck, but I tell you what, I'm undefeated!

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