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Bb Question


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It all depends on your cranks mate. I'd just go with a 127.2mm because that way you wont have to worrie and it will give a good chain line on most cranks, asuming you're running square tapper.

Am running isis and the cranks will prob be either Zoo or try-all. Would that make any difference?

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get a long one at 122/128. the 128 will deffinatly fit you just may have to play with the chain line a little bit.


its more the crank arms that need the spacing from the frame and not the fixed sproket. as the sproket could be 10mm away yet the arms touching the frame :ermm: say if you had a 118 b/b as an example

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