4ZA Cirrus Pro Carbon T30 UD Finish Campagnolo 11 Speed Disc Brake Tubular Wheelset, Rim Height 30mm/Rim Width 25mm Rim: 30mm disc specific full carbon tubular rim -25mm wide, 24H front & rear Hub: 4ZA CX Disc hub set-sealed cartridge bearings (2 front - 4 rear)-3 pawl freehub mechanism Spoke: Sapim Race Black Spoke Lacing: Front & Rear: 2 cross laced Brake: 6IS Rotor mount