This lightweight, sealed bearing bottom bracket is constructed using CNC machined alloy cups.Designed to press-fitted into 41mm Internal Bottom Bracket shells.Works together with common 24mm axle size type cranks. Â ¢ Â Â Â Â Â Available in 24/22mm stepped SRAM GXP types.¢ Â Â Â Â Â Road or MTB fit.¢ Â Â Â Â Â Spacers included ¢ Â Â Â Â Â Black anodised finish