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what's the difference between Shimano alfine crank s500 and s501?
Just a styling update. Both generations come in versions with single or double chainguards, the latter having a 6.5mm wider chainline as a result. There's a running change in there somewhere where they got BB-RS500 cups rather than SM-BB4600, but that's even more of a distinction without a difference.
gbj_tester
Rodolfo
So, going through the docs on Shimano I can't find the answer; what's the difference between Shimano alfine crank s500 and s501? I believe it has something to do with axle length and BB width, but would like to get this reassured and then know which one is which and which one best to use.
Many thanks in advance, hivemind