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  1. #1
    Junior Member
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    BB for my Cannondale

    Hi.
    I have a Cannondale R700 1997 with Shimano 105 Crank
    After having some noise from teh crank/bb area i reoved the crank and the BB
    The BB is a Shimano BB-UN52 68 BC1,37x24

    Whemn i look at webpages for a replacement i have the option for

    Shimano compatible. 251g. (68x107mm). Specify Model: 68x107, 68x110, 68x113 or 68x115mm.

    witch one to get?

  2. #2
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    Found out mesself ;-)

  3. #3
    Senior Member bikeman715's Avatar
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    messure the axle with a ruler . my guess would be like a 113 mm should do it.

  4. #4
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    infact it was a 107
    .... i am wondering ... i like this bike a lot .. and would like to upgrade it it has 105 and ultegra now
    from 1996 with lots of miles on salty west norwegian roads .. if i buy a new ultegra sl .... does the new BB have to be a 68/107?

  5. #5
    Senior Member bikeman715's Avatar
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    yes with your question , but if you are going with new stuff (08) then it will be external cup and bearing units. then the axle would be longer .

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