The Hope RS4 C/Lock 20Five Rear Wheel is a Road/Cyclo cross disc specific rim built onto Hope's excellent RS4 centerlock hub. Hope wheels are machine built and hand finished in Barnoldswick. Hope RS4 C/Lock 20Five Rear Wheel Features 20FIVE rim built on Hope's RS4 road/cyclocross hubs The RS4 rear hubs feature the reduced drag ratchet mechanism Stainless steel, sealed cartridge bearing 700c welded AL 6066 rim 2 Pawl ratchet mechanism Tubeless compatible (requires tape and valves) Wheels are built using high quality Sapim Race double butted spokes and brass nipple Rim width is ideal to suit larger volume road/cross tyres Centrelock disc brake compatible only Rear wheel supplied with 135 QR and 142x12mm conversion kits 11 Spd Shimano and Campagnolo freehub body options Rim Width: 20mm internal / 24mm external Rim Depth: 25mm Rim ERD: 700c - 594mm Rim weight: 700c - 425g Compete standard wheel weights: 24H - F 762 / R 908, 32H -  F 815g / 950g Complete straightpull wheel weights: 24H - F 770g / R 893g