SRAM X1 Rear Derailleur
SRAM -
The X1 group has all the important features of the high-priced spread with a modest increase in weight. 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 SRAM X1 Rear Derailleur - 11 Speed, Medium Cage, Black 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: 256