Dt swiss 240s rear road hub 240s campag 9 speed rear hub 130mm 32 hole black and red with a star ratchet drive system in freehub that offers low maintenance ultimate strength and quick engagement features a super light sealed bearing hub forged aluminium hub shell and 15mm diameter aluminium alloy axle keeps weight to a minimum features the unique hugi ratchet system 18 engagement teeth on ratchets make for a more positive pick up special coating on ratchets and axles massively improves li