SRAM Red Shifter/Brake Lever-Set Double Tap with ZeroLoss Technology delivers smooth up and downshifts in one motion Revolutionary Ergonomic Design is comfortable, with the added benefit of custom-tunable reach adjust Ultra Strong carbon brake lever and shift lever are light, stiff and comfortable Consists of speeds - 10 rear / Double FC front and weighs 280 grams Material is made of carbon brake lever and carbon shift levers Compatibile with SRAM Red, Force and Rival Front and Rear Derailleurs and industry-standard 10 speed cassettes