Hope rs4 s pull 6 bolt disc rear road hubhopes reputation continues to grow internationally they have achieved global recognition due to the high quality products they offer to the market this rs4 s pull 6 bolt disc rear road hub is strong smooth and serviceable the hub shell is made from t 6 aluminium billet and paired with stainless steel cartridge bearings for durability and when the time finally comes easy servicing compatible with shimano or campagnolo groupsets this rs4 s pull 6 b