SRAM MTB BB92 GXP Bottom BracketSRAM MTB BB92 GXP BOTTOM BRACKET A variant of the external bottom bracket, PressFit cuts weight and provides easier installation by allowing you to press the bearing cups into the frame instead of threading them. There's no change to the crank spindle length and diameter remain the same. SPECIFICATIONS Crank Bottom Bracket Interface GXP Bearing Type Standard Spindle Diameter 24mm Material (Cups) Plastic FEATURES PressFit cuts weight Easier