SRAM XX1 Rear Derailleur (Black/Red) (1 x 11 Speed) (Medium Cage) (Clutch)

Professional grade derailleur built with carbon fiber and aluminum, featuring roller clutch pulley cage and cage lock feature for easy wheel installation. 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 Specs: ColorBlack/Red Rear Derailleur Mount Type10x1 Standard Drivetrain Speeds11 Largest Cog42 Chain Wrap Capacity (teeth)32teeth Cage LengthMedium Weight220g Rear Der/Shifter CompatibilitySRAM X-Actuation Substitutes: RD6108 See Also: LU4720