Ultra reliable disc brake specific wheels built in the UKHope 20FIVE-RS4-J Bend- Centre lock 32 Hole Built with RS4 J bend 32 hole hubs using black double butted Sapim Race spokes Wheels machine built and hand finished in Barnoldswick 700c wheel size Tubeless compatible (requires tape and valves) Only compatible with disc brake set ups The RS4 rear hubs feature the reduced drag ratchet mechanism Front 815g