Decreased tension in low gear and added bumper improve drivetrain silence.
12-speed rear.
Description
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 2x12 drivetrain systems