Left and right bottom bracket bearing cup set for use on Giga X Pipe cranks with an integrated 24mm GXP spindle (includes plastic seal/spacer-shell with o-rings) Updated GutterSeal technology improves sealing while reducing drag, plus a new high-end cup profile with improved tool engagement Team: steel sealed bearings with polished, tungsten-grey anodized alloy cups Can also be used to replace/upgrade XR-series GXP systems Choose: English (1.37"x24tpi - LH/RH) or Italian (M36 x 24tpi - RH/RH) BB-Cup tool sold separately Torque 25-30 ft/lbs