XT M8100 Rear Derailleur for 1x Drivetrains

The Shimano Deore XT RDM8100/M8120 rear derailleur is designed to provide smooth and stable shifting for speed MTB drivetrains.

Offers fast and shockless shifting
The lowprofile 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