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  1. #1
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    8 speed cassette on 9/10 speed hub

    With my recent wheelset quest, I have decided on a set of Open Pro / Ultegras. The wheelset is advertised as 9/10 speed. Will my Shimano 8 speed cassette fit on the Ultegra hub or do I need a spacer? Are the splines even compatible? Thanks.

  2. #2
    Senior Member
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    The 8-speed cassette will fit with no extra spacers needed. All Shimano hubs that are 9/10-speed are really 8/9/10-speed compatible. Actually a 10-speed cassette needs an included 1 mm spacer but neither 8 or 9-speed cassettes do.

  3. #3
    Senior Member
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    Thanks for the info.

  4. #4
    Senior Member Grand Bois's Avatar
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    Hillrider must have the all time record for posting correct information here. I think I'd even let him work on one of my bikes and I've never let anyone work on my bikes.

  5. #5
    cab horn
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    Quote Originally Posted by HillRider View Post
    The 8-speed cassette will fit with no extra spacers needed. All Shimano hubs that are 9/10-speed are really 8/9/10-speed compatible. Actually a 10-speed cassette needs an included 1 mm spacer but neither 8 or 9-speed cassettes do.
    It's a 1.1mm spacer.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  6. #6
    bike whisperer Kimmo's Avatar
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    copy/paste links: http://velospace.org/node/36949 http://velospace.org/node/47746 http://velospace.org/node/47747
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    LOL.

    Would you let operator near your bike, then?

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