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Old 01-02-11, 09:51 AM   #1
thunderworks
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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
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Old 01-02-11, 09:55 AM   #2
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The cassettes are interchangeable. Shimano 10 speed require a spacer under the cassette. 9 speed are directly interchangeable.
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Old 01-02-11, 04:27 PM   #3
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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.
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Old 01-03-11, 09:14 AM   #4
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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.
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.
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Old 02-12-11, 02:57 AM   #5
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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?
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Old 02-12-11, 01:47 PM   #6
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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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Old 02-12-11, 03:20 PM   #7
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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.
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Old 02-20-11, 04:31 PM   #8
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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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