Vision SC55 TL Rear Wheel Tubeless 700c 24H Spoke Count Disc Brake Center Lock Rotor Mount – BLKVision SC55 TL Rear Wheel 24H 700c TL DB CL TA12 HG 11 12sp. The SC55 is a light and versatile set of carbon racing wheels available in a 55mm rim depth and disc brake hubs. Theyve been developed using extensive wind tunnel testing and on the road with professional cyclists from sponsored teams offering a great balance of performance and light weight at a competitive price. They are hand built to artisanal standards with direct pull aero bladed spokes