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  1. #1
    Formerly PaintPeelinPbody
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    Square Taper Crank with External BB - 24mm Spindle Adapter?

    Ok, so BMX guys have been using after spinder/BB configuration for awhile. Basically, you select the square taper crank of your choosing, and select the BB/spindle seperately.

    Like this:



    Has anyone seen a setup that allow you to run square taper MTB cranks with an external BB setup?
    GIS/GPS Pro using ArcFM for Utility Mapping - Always willing to connect with other MTBers in the industry.

  2. #2
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    Not to my knowledge. There is not a BB on the market that uses a square taper setup with external bearings.

    Why would you want that?

  3. #3
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    You'd be combining the worst of both worlds. Also, there might be insufficient space to fit an external cup between the BB shell and cranks. Depends on spindle length and shell width of course.

    Only reason BMX people do that conversion is that their frames don't fit a Shimano UN-55, which you can fit and forget for a very long time of quality riding time.

    White Industries does make a square taper BB with separate cups if that's your thing. It is a light piece compared to regular BB cartridges.

  4. #4
    Formerly PaintPeelinPbody
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    Quote Originally Posted by Saul Lumikko View Post
    Only reason BMX people do that conversion is that their frames don't fit a Shimano UN-55, which you can fit and forget for a very long time of quality riding time.
    Holy crap I forgot how cheap those were. Nevermind, disregard, going that route instead.

    Gonna run a Wolftooth 94BCD Narrow-Wide on a Cook Brothers F-Type crankset. Trying to reuse some old parts on my wife's new bike.
    GIS/GPS Pro using ArcFM for Utility Mapping - Always willing to connect with other MTBers in the industry.

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