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Old 06-12-06, 09:29 AM   #1
Silverexpress
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ISIS equivalent for Shimano BB-UN52

Hello,

I have Ritchey WCS MTB crankset laying around that I'd like to install on my Bridgestone XO-4. The original BB on this bike is a Shimano BB-UN52 68x107 with an Alvio triple crankset.

The WCS crankset takes an ISIS BB, so would anyone know what the equivalent ISIS size would be?
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Old 06-12-06, 09:32 AM   #2
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It isn't about equivalent sizes, it is about the proper spindle length to work with the WCS crankset. I would start at the Ritchey website and see what they recommend for that crank
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