Isis BB - what size for 83mm shell?- Mtbr.com
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  1. #1
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    Isis BB - what size for 83mm shell?

    With the newer external BB all cranks are clearly marked as 68/73 or 83mm. What is the equivalent for Isis/Square Taper BBs? The measurements I've seen so far are 113/118/128mm.

  2. #2
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    113/118 would be for 68/73 shells, 128 for the 83mm shells

  3. #3
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    Cool thanks mate - a little thinking might well have lead me to the same conclusion!

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