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Neck bearing problems.

This is a discussion on Neck bearing problems. within the Technical forums, part of the Caferacer.net Forums category; Trying to get the buell thunderbolt front end on the 79 xs11 frame. Buell stem OD is 25.4mm or 1 inch. Xs neck top race ...

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  1. #1
    Senior Member Joep7's Avatar
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    Neck bearing problems.

    Trying to get the buell thunderbolt front end on the 79 xs11 frame.

    Buell stem OD is 25.4mm or 1 inch.

    Xs neck top race mount ID is 47mm, lower is 55mm, widths are 11mm and 16mm respectively.

    so my top bearing needs to be
    25.4/47/11
    bottom
    25.4/55/16

    problem is that neither allballsracing or McMaster carries anything in that size.

    im thinking my option may be to either turn the stem down or machine a bushing that fits in the neck....or both.

    Any other thoughts?

  2. #2
    Senior Member Joep7's Avatar
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    With hillsy's help over at DTT I think the plan is make two bushings that gets my stem OD to 30mm and then getting a 30/47/12 and 30/55/17 bearing set. Should be easy enough to make and I can machine a recess in the stem with a 1mm lip to press seat the bushing on.

  3. #3
    Senior Member hillsy's Avatar
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    No problem

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