For use with 30mm diameter cranks with a spindle length of at least 104mm when used in a 68mm wide BB shell - This is the overall spindle length with all spacers and adjusters removed from the spindle Enduro angular contact bearings Important: Will not work with crank spindles less than 104mm - Will not work with standard BB30 cranksets - PLEASE MEASURE YOUR CRANK SPINDLE LENGTH 68/73mm ENG 30mm BlackUPC/EAN/GTIN: 811079021922