SRAM - X01 Rear Derailleur - 11-Speed, Medium Cage, Black

Competition grade derailleur built with carbon fiber and aluminum, featuring roller clutch pulley cage and cage lock feature for easy wheel installation. X-Horizon design is specific to single-chainring drive trains. Features Wide-tooth, narrow-tooth pulley wheel maximizes chain control by fitting inner and outer chain links perfectly X-Horizon design maintains constant chain gap across all gears and eliminates ghost shifting Roller bearing clutch eliminates derailleur bounce and chain slap Cage Lock feature simplifies wheel removal and chain installation Must be used with SRAM 1x11 shifter and cassette Cannot be used with double or triple chainrings Specifications Color: Black Largest Cog: 42 Rear Derailleur Mount Type: 10x1 Standard Chain Wrap Capacity (teeth): 32 Cage Length: Medium Rear Der/Shifter Compatibility: SRAM X-Actuation Drivetrain Speeds: 11 Weight: 252 Manufacturer Part Number: 00.7518.064.000