wapad Posted April 1, 2012 Share My road bike is BB30 but I can run my normal ultegra crank there is no BB just 2 bearings that the crank fits into so looking at a new crank and want to know what the difference between a GXP crank and my ultegra crank, if any Link to comment Share on other sites More sharing options...
kosmonooit Posted April 1, 2012 Share GXP Steps down on the non-drive side (smaller diameter shaft) Link to comment Share on other sites More sharing options...
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