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  • Anyone have experience with the newer cheapie Shimano BB, the un300?

    I just ordered one from CRC and you can feel it click faintly all the way around as you manipulate the spindle... like a mild version of the volume knob on a 70s hifi.

    Should I return it, or are they all like that...?

  • Should I return it, or are they all like that...

    Dunno about UN300, but Shimano hub bearings are routinely notchy off the bike when new. Like the hubs, the BB is an assembly of cheap bearings assembled at the factory with all the preload, so it's not surprising. I'm guessing you won't notice it when assembled and it will smooth out a bit when broken in.

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