SRAM XX1 Rear Derailleur (Black) (11 Speed) (Medium Cage)

SRAM XX1 was built with a dedicated 1x drivetrain philosophy, making it simpler, lighter and more durable than any other. Driven by a cutting-edge, single-ring carbon crank and seamless component integration, the SRAM 1x drivetrain delivers flawless chain management and faster more precise shifting. Each component is designed synergistically with the others and represents a culmination of great mountain bike technology and design. The rear derailleur roller bearing clutch reduces bounce and chain slap and the Cage Lock technology makes the wheel removal and installation easier than ever before. Paired with the XX1 shifter, the XX1 rear derailleur forms the backbone of X-Actuation technology for unbelievably smooth shifting action.