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bottom bracket confusion...

Discussion in 'BMX & Dirt Jumping' started by 151, Oct 4, 2017.

  1. 151

    151 Chimp

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    I am trying to run a set of carbon MTB cranks on a frame with a BMX "mid BB" shell. The shell is 73mm wide with a 41mm ID opening.

    My cranks have a 24mm spindle.

    I can run a mid bb since that is what the frame is designed for, but I'm not sure if one exist for 24mm spindles.

    So, I am curious if I can run a press fit MTB bottom bracket like the chris king PF24. The pf24 has a od of 41mm and accepts a 24mm spindle.

    It seems the King PF24 bottom bracket will work just fine, but my ignorance has me worried. Am I missing some other factor, or should it work?

    Thanks!~
     
    #1 -   Oct 4, 2017

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  2. 151

    151 Chimp

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    Just spoke to the builder of my frame. It looks like mid bbs are 41.3mm vs 41mm for PF24.
     
    #2 -   Oct 4, 2017
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