Shimano BB-71 Types

quarkrad809
quarkrad809 Posts: 42
in Workshop

I had a 'look around' and to be honest still not sure. BB needs replacing - just removed it. It is a bb71-41. There is a bb71-41, a bb71-41a and a bb71-41b (this is for a road bike). Hard to know what is the difference - hence which one to buy. Any help appreciated.

Comments

  • wilberforce
    wilberforce Posts: 315

    Looks like 41a = MTB and 41b = road

    The difference between the two is the bb shell width

  • trevor.hall12
    trevor.hall12 Posts: 478

    The difference is the piece of plastic in the middle of the cups .

    You can buy either and if you're existing middle part is OK just reuse it .

    As above one ,tge shorter one is road the other is mtb

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