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  1. #1
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    10spd 105 STI on 8 spd cassette

    I've just bought some new 105 10 speed STI shifters for my roadbike. I have an 8 speed cassette on two year old 105 wheels. Will my shifters work ok (with alternate rear mech cable routing?) or will I have to buy a 10 spd cassette and new chain? If so, will this cause me probs as I have an old Campag chainset - will the chainwheel teeth be too wide/incompatible?

  2. #2
    Senior Member capwater's Avatar
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    I have heard stories of using the alternate cable routing when you have a 1 gear difference, but I doubt it with 8 to 10. Slap on a 10 speed cassette and you should be OK with the new brifters. You might have to fiddle with the FD some to fine tune it. Also, you'll need a 10 speed chain since they are thinner to accomodate the closer spacing of the rear cluster.

  3. #3
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    Thanks for that - I may try the cable option, just out of interest, but 10 spd sounds like the way forward.

  4. #4
    me have long head tube TallRider's Avatar
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    You'll need 10-speed cassette (which will work on your current hub) and chain.

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