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  1. #1
    Burning Matches. ElJamoquio's Avatar
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    Cassette has too much play

    I just received a built up wheel with a Powertap hub.

    I tried to put my own (Ultegra 10-speed) cassette on it, but when I tighten down the lockring, there's still too much space between the last gear and the base of the hub, so the whole cassette doesn't tighten down.

    This isn't a torque problem - even when torqued down appropriately, there's about .020" (about half a millimeter) too much space between the hub shoulder and the smallest gear.

    What gives? Am I missing a shim? The hub just isn't compatible? Something else?

  2. #2
    Senior Member DieselDan's Avatar
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    You need that ever so small spacer for a 10-speed cassette to fit an 8/9 freehub.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  3. #3
    Burning Matches. ElJamoquio's Avatar
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    Quote Originally Posted by DieselDan
    You need that ever so small spacer for a 10-speed cassette to fit an 8/9 freehub.
    Thanks!

    Now where to get it? Before I posted, I searched Nashbar for 'spacer' and couldn't find it. After you mentioned this, I searched both Nashbar and Performance for 'spacer' and 'shim' - no dice. Any recommendations?

    Does the shim go between the hub and cassette (i.e., on the wheel side)? I could make one at work...

  4. #4
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    I believe the shim comes with 10-speed cassettes. Try an LBS to see if they have an extra one lying around from a cassette replacement job.

  5. #5
    Senior Member DieselDan's Avatar
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    Quote Originally Posted by ElJamoquio
    Thanks!

    Now where to get it? Before I posted, I searched Nashbar for 'spacer' and couldn't find it. After you mentioned this, I searched both Nashbar and Performance for 'spacer' and 'shim' - no dice. Any recommendations?

    Does the shim go between the hub and cassette (i.e., on the wheel side)? I could make one at work...
    The spacer goes on first, then install the cassette. I know it is availabe through a wholesale company that a good LBS can order from.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

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