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  1. #1
    Ride the Road Daily Commute's Avatar
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    Surly Cross-Check; hard tail MTB
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    Deore LX Bottom Bracket/Ultegra Crankset

    Would an Ultegra or 105 crankset work with an Deore LX Bottom Bracket? Should I even consider replacing the bottom bracket, too? It's giving me no problems, but it has about 5000 all-weather commuting miles on it. It's on a Surly Cross Check. Thanks.

  2. #2
    Senior Member
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    Quote Originally Posted by Daily Commute
    Would an Ultegra or 105 crankset work with an Deore LX Bottom Bracket? Should I even consider replacing the bottom bracket, too? It's giving me no problems, but it has about 5000 all-weather commuting miles on it. It's on a Surly Cross Check. Thanks.
    no. the mountain BBs are different from the road BBs, and you will screw up your cranks if you try to put a road crank on a mountain BB. heres the info: http://www.sheldonbrown.com/bbsize.html#shimano

  3. #3
    Senior Member sydney's Avatar
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    Quote Originally Posted by Phatman
    no. the mountain BBs are different from the road BBs, and you will screw up your cranks if you try to put a road crank on a mountain BB. heres the info: http://www.sheldonbrown.com/bbsize.html#shimano
    Not all of them!! XTR ocralink uses the same spline pattern, but not the required spindle length.

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