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  1. #1
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    Shimano/SRAM cassette compatibility

    Do all Shimano Ultegra or 105 and SRAM cassettes interchange freely on an appropriate cassette freewheel body? Are there any limitations? Is Dura Ace a special tech issue?

    TIA

  2. #2
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    The cassettes are interchangeable. Shimano 10 speed require a spacer under the cassette. 9 speed are directly interchangeable.

  3. #3
    cab horn
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    They are technically compatible in that the cassettes will slide onto the same freehub body for all levels of 10s. For 10 speed systems I would not swap out the cassette to SRAM - you will get inferior shifting. Although it is not bad enough that you can't ride it.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
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    Quote Originally Posted by operator View Post
    They are technically compatible in that the cassettes will slide onto the same freehub body for all levels of 10s. For 10 speed systems I would not swap out the cassette to SRAM - you will get inferior shifting. Although it is not bad enough that you can't ride it.
    I must disagree about the shifting quality. I have been using SRAM for years as well as Shimano. If anything the Sram is better than Shimano. Plus the Sram last longer.

  5. #5
    Senior Member deepakvrao's Avatar
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    Quote Originally Posted by kycycler View Post
    The cassettes are interchangeable. Shimano 10 speed require a spacer under the cassette. 9 speed are directly interchangeable.
    I have a SRAM 10 speed and I 'think' that also has a spacer below the cassette. Wrong?

  6. #6
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    Quote Originally Posted by deepakvrao View Post
    I have a SRAM 10 speed and I 'think' that also has a spacer below the cassette. Wrong?
    A Sram 10spd cassette won't have a spacer typically. If you have a spacer it could be the Mavic spacer that is used on Ksyrium wheels. But in that instance, the Shimano one would require 2 spacers (mavic + shimano10).

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    I just installed a 10 speed SRAM cassette on an Ultegra hub that previously had an 8 speed Shimano cassette. Without the spacer I could not properly tighten the lock ring. With the spacer everything tightened and aligned properly. Haven't done a road test yet.

  8. #8
    Senior Member LuMax's Avatar
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    I will soon be installing a new SRAM 10 speed cassette on a SRAM/Shimano compatible freewheel hub, do I need a spacer?

    Also, do you recommend putting a very thin coat of grease on the freewheel hub body prior to sliding the cassette onto it or should I leave it dry?

    Thanks

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