Cycling Equipment · Public discussion

campy QR thumbnut?

Started by Ken Wright · · Last activity · 4 posts · 325 views

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Cycling Equipment
Published
23 January 2007
Last activity
24 January 2007
Original author
Ken Wright
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  1. I have a campy front quick release. The thumbnut has a plastic
    (nylon?) insert which has become loose. Since it is loose, the
    skewer will thread partially into the plastic and just rotate
    without advancing into the metal portion of the nut.

    What is the best way to tighten the plastic insert?

    thanks,
    kw

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  2. Ken Wright said:

    I have a campy front quick release. The thumbnut has a plastic
    (nylon?) insert which has become loose. Since it is loose, the
    skewer will thread partially into the plastic and just rotate
    without advancing into the metal portion of the nut.

    What is the best way to tighten the plastic insert?

    thanks,
    kw

    you *could* try using a punch to clamp the insert back into the body, or
    drilling and tapping a thread for a 2mm bolt. But personaly I'd just replace
    the QR, it is an essential safety device after all...

  3. Quoted message said:
    Ken Wright said:

    I have a campy front quick release. The thumbnut has a plastic
    (nylon?) insert which has become loose. Since it is loose, the
    skewer will thread partially into the plastic and just rotate
    without advancing into the metal portion of the nut.
    What is the best way to tighten the plastic insert?

    Joel Mayes said:

    you *could* try using a punch to clamp the insert back into the body, or
    drilling and tapping a thread for a 2mm bolt. But personaly I'd just replace
    the QR, it is an essential safety device after all...

    Or since the insert is a convenience feature just remove the nylon
    insert. Older models without them worked just fine. It isn't a safety issue.
    --
    Andrew Muzi
    www.yellowjersey.org
    Open every day since 1 April, 1971

  4. Joel Mayes said:
    Ken Wright said:

    I have a campy front quick release. The thumbnut has a plastic
    (nylon?) insert which has become loose. Since it is loose, the
    skewer will thread partially into the plastic and just rotate
    without advancing into the metal portion of the nut.

    What is the best way to tighten the plastic insert?

    thanks,
    kw

    you *could* try using a punch to clamp the insert back into the body, or
    drilling and tapping a thread for a 2mm bolt. But personaly I'd just replace
    the QR, it is an essential safety device after all...


    I don't see how it can be drilled or tapped. The insert just spins within
    the nut. I've already tried a drill bit. Does anyone know how these are
    made? I kind of looks like there is a separate metal retainer but I'm not
    sure.

    kw

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