Super Record 12-Speed controls are aesthetically pleasing and functional. The unidirectional carbon design offers riders two different lever-handlebar positions to adapt different size hands, maximizing control. This results in consistent power, stiffness, and reliability when you need it. - Hydraulic disc brake actuation - Vari-Cushion technology offers an ergonomic, comfortable, and safe support and grip - The "one lever-one action" feature assigns each lever one function to prevent shifting errors - Ultra-Shift mechanism enables upshifting up to three gears at a time, and downshifting a full five - Disc rotor sold separately