Alloy cups and sleeve with square steel axle.103/113mm for ROAD cranksets *Square Taper BB (JIS standard)*Sleeve Material - Alloy*Cup Material - Alloy*Sealed Cartridge Bearings*BB Shell Width: 68mm*Ave. Weight: 260g (113mm)Axle - SCM415(Hollow)Shell Width - 68mm Cup Thread - BC 1.37 x 24TAxle screw - M8 x P1.0 Flange Screw (NOT Included)Finish - Silver