Bottom Bracket Black Bearing BSA 24 axle or GXP Ceramic Bearings

Screw-in bottom bracket for frame width 68/73 mm. The two machined aluminum cups screw into the frame. The bearings are ceramic for this model. Details: Compatible with BSA/BSC box with a frame diameter of 34.75 mm Ceramic bearings Compatible with Shimano Hollowtech II type 24 mm axles, as well as GXP via the supplied adapter. Reference: 3760290190306