The Hope RS4 Rear Hub is a quality hub designed specifically for the road.  This hub features stainless steel bearings and has been Machined from forged T6 Aluminium billet. Hope RS4 Rear Hub Features 2 pawl ratchet with 44-point engagement (8 deg) Reduced drag ratchet mechanism Machined from forged T6 Aluminium billet Stainless Steel Bearings Axle width 130mm 9/10/11 speed Aluminium Freehub Shimano or Campagnolo compatible Weight 262g for a 32 hole Shimano alloy freehub option