S-Works Crux 5 - SRAM RED XPLRS Works Crux 5 SRAM RED XPLR The S Works Crux 5 is built for pure gravel race speed. Lightweight, aerodynamic, responsive and ready for rough terrain, this is a serious performance gravel bike for riders chasing the fastest possible time across mixed surfaces. With a FACT 12r carbon frame, SRAM RED XPLR 13 speed wireless drivetrain, Roval Terra Aero CLX wheels and integrated Roval Terra cockpit, the Crux 5 is designed to turn every watt into speed