SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black/Red

SRAM XX1 Rear Derailleur - 11 Speed Medium Cage Black/Red. Professional grade derailleur built with carbon fiber and aluminum featuring roller clutch pulley cage and cage lock feature for easy wheel installation.

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