The Roval CLX 32 Disc Tubular wheels are some of the lightest carbon wheels ever made, but this doesn't come at the expense of fundamental performance. Instead, painstaking engineering and lab testing helped Roval achieve a 550 gram front and 680-gram rear wheel that's tough enough for cyclocross racing, yet light enough for the demands of a GC climber. The low inertia and ample stiffness help the wheel accelerate and change direction on a dime. We didn't skimp on aerodynamic benefits either, despite this wheel's low rim profile. The CLX 32 was engineered in CFD around a 26mm-wide tire shape, and honed in Specialized's very own Win Tunnel, in order to be as aerodynamic as some rims almost twice its depth. Meanwhile, a disc-first engineered design, Roval aero hubs, fitted with DT 240 star-ratchet internals, and CeramicSpeed bearings complete the fast engaging ensemble. Truly, the CLX 32 ushers in a new era of lightweight performance road wheels.