The Shimano Deore XT RD-M8100/M8120 rear derailleur is designed to provide smooth and stable shifting for 12-speed MTB drivetrains.

– Offers fast and shockless shifting
– The low-profile design includes a bumper added to the derailleur pulley cage
– Shimano Shadow RD+ technology reduces chain slap and creates a quieter drivetrain
– Includes large, 13T pulley
– Long cage is designed to be used with 1×12 drivetrain systems
– Rear Derailleur Mount Type: Shimano Rear Direct Mount, 10×1 Standard
– Drivetrain Speeds: 12
– Cage Length: Long
– Chain Wrap Capacity (teeth): 41 teeth
– Largest Cog: 51
– Weight: 284 g
– Rear Der/Shifter Compatibility: Shimano Mountain