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  • Whats the deal with BMX cranks/BBs? How are they different to normal cranks/BBs? Basically, how do you put BMX cranks on a normal road frame.

    if your frame is english 68mm thread, just buy a euro bmx bb, its exactly the same.

    bmx cranks are normally 3 piece, with a spindle going through the bb as opposed to the shimano square taper style...

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