Road Cycling · Public discussion

Fork Wobble

Started by BobI · · Last activity · 3 posts · 406 views

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Road Cycling
Published
3 September 2004
Last activity
3 September 2004
Original author
BobI
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3
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Public discussion
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  1. Does anybody else have this problem? Or maybe it's not a problem?

    Just today I was standing over my road bike, with a carbon fork and
    integrated headset, and checking the brakes before going off for a ride. I
    squeezed the front brake and rocked the bike fore and aft with the brake on
    and noticed, and felt, the fork move inside the head tube. The bearings are
    preloaded correctly and the brake caliper was tight on the fork. The top
    bearing seems to move inside the head tube a small amount and the fork
    steerer tube doesn't fit very tightly inside the top bearing. Is this
    normal?
    I checked my other road bike, integrated headset and carbon fork also, and
    it has the same wobble. If this situation is abnormal how do I fix it? Or is
    this a feature of integrated headsets. Any opinions?

  2. Quoted message said:

    "BobI" [email hidden]

    wrote in part:

    Quoted message said:

    I squeezed the front brake and rocked the bike fore and aft with the brake on
    and noticed, and felt, the fork move inside the head tube. The bearings are
    preloaded correctly...

    If the steerer feels obviously loose when you do this the bearings are *not*
    preloaded properly. Adjust the preload and try again.

    Regards,
    Bob Hunt

  3. Hunrobe said:
    Quoted message said:

    "BobI" [email hidden]

    wrote in part:

    Quoted message said:

    I squeezed the front brake and rocked the bike fore and aft with the
    brake on and noticed, and felt, the fork move inside the head tube. The
    bearings are preloaded correctly...

    If the steerer feels obviously loose when you do this the bearings are
    *not* preloaded properly. Adjust the preload and try again.

    And, be sure to loosen the stem binding bolts before you try to tighten
    the bolt on top of the fork. If you think it's tight enough because that
    bolt is snug, you are looking at the wrong thing.

    You might be in for some expense here, since if you rode the bikes for a
    while with bearings that loose, you may have damaged them.

    --

    David L. Johnson

    __o | Become MicroSoft-free forever. Ask me how.
    _`\(,_ |
    (_)/ (_) |

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