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  1. #1
    cmh
    cmh is offline
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    Replacing 9-speed cassette w/10 speed

    I have a TT bike with 9 speed shimano cassette and friction shifters. Can I pull the 9 speed cassette and put a 10 speed on (it already has a 10 speed chain)? Will the wheel dish/hub spacing be correct? Any other changes/adjustments neccessary? The wheel is a Mavic Aksium if that is of any consequence.

    Thanks for the help.

  2. #2
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    Sounds like it should work. I believe the 9sp and 10sp cassettes are the same width, the cogs are just thinner on the 10sp to squeeze in the extra gear.

  3. #3
    cmh
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    Quote Originally Posted by Proximo
    Sounds like it should work. I believe the 9sp and 10sp cassettes are the same width, the cogs are just thinner on the 10sp to squeeze in the extra gear.
    Thanks - I'll give it a shot. It sounds like I might not need any adjustments. At worst, I'd have to adjust the derailluer stops.

    cmh

  4. #4
    Rider in the Storm
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    I've done this with STI and it works fine - friction should be even easier. You should have a thin spacer that came with the 10sp cassette for use with a 9sp freehub. I had to adjust my rear derailleur limits to obviously omit one gear, but you will likely be able to hit all 10.

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