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Specification
Bearings 2 x CERAMIC Bearings , 2 x Bearing shield, Spec 2 x Retaining Clip , 1 x Additional C Clip, Weight 61g, Etc.
Designed for Road, XC & All MountainBB30 named for its required spindle size cuts weight by up to 100 grams, narrows Q-factor, increases ankle clearance, and ups bearing durability.its a fairly new standard involving different frame requirements and crank design.along with a 30 mm spindle, it requires an oversized 68 mm or 73 mm bottom bracket shell andpress fit bearings held in place by snap rings.