SRAM NX Rear Derailleur (Black) (1 x 11 Speed) (Long Cage) (Clutch)

NX is SRAM's 1x drive train for the masses. All the key functionality features of high end 1x derailleurs are built in. Features: X-Horizon geometry Same roller clutch and CageLock features as high end models Cannot be used with double or triple chainrings Specs: Largest Cog42 Rear Derailleur Mount Type10x1 Standard Drivetrain Speeds11 ColorBlack Weight322g Chain Wrap Capacity (teeth)25teeth Rear Der/Shifter CompatibilitySRAM X-Actuation Cage LengthLong Substitutes: RD6129, RD6130