Shimano splined crank and bottom bracket compatability chart

Posted At : September 22, 2006 2:27 PM | Posted By : Erik Voldengen
Related Categories: Bike

I was messing around with my cross bike again, and I needed a fat bottom bracket to work with my single ring setup.

I'm using Dura Ace 9 speed cranks (7700 or 7701), the kind that uses the spline pattern bottom bracket.

Oddly enough, you can't mix Shimano splined bottom brackets with cranks. The spline patterns are different, and it just won't work. Worse, you'll tear up a crankset if you use the wrong BB setup.

So here's a little compatability chart:

CRANK: BOTTOM BRACKET:
  Dura Ace Ultegra 105 XTR XT LX ES70/71 ES50/51
Dura Ace YES YES YES YES NO NO NO NO
Ultegra YES YES YES YES NO NO NO NO
105 YES YES YES YES NO NO NO NO
XTR YES YES YES YES NO NO NO NO
XT NO NO NO NO YES YES YES YES
LX NO NO NO NO YES YES YES YES

Dura Ace = 7700 or 7701
Ultegra = 6500 or 6501
105 = 5500 or 5501

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