External type threaded bottom bracket to fit SRAM type 24/22mm axle cranksExternal type threaded bottom bracket to fit SRAM type 24/22mm axle cranks.(Not an original SRAM product.)Lightweight, CNC Machined alloy cups with Sealed Cartridge bearings. Central plastic dust spacer is recessed shape for cable clearance. Includes nylon spacers for fitment to 68 or 73mm BB shells.