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  1. #1
    Too busy looking good
    Reputation: HOser's Avatar
    Join Date
    Dec 2005
    Posts
    347

    Anybody using a road SKF or Crank Bros. ISIS BB on their MTB?

    I ask this because I'm considering a Middleburn Duo crankset for my bike (ISIS version), and I want a 108 mm spindle length to get the right chainline. SKF and Crank Bros. seem to be universally regarded as the best ISIS BBs you can get. But, the MTB versions don't come in spindle lengths less than 113 mm (the assumption probably being that most MTB drivetrains have triple chain rings, which is true).

    Each of these companies sell road bike versions of their ISIS BB with 108 mm spindle length. Can anybody vouch for using these on an MTB for dry conditions XC/endurance riding? Presumably I would be invalidating the warranty, but in practice, do they hold up to XC use?

  2. #2
    mtbr member
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    Join Date
    Feb 2006
    Posts
    9
    I just saw this thread after posting a similar one. I am converting my triple to the duo and needed to know the best isis bb length. I have been looking at the FSA's. They have 68x108.

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