Shimano XT RD-M8100 SGS 12 Speed Long Cage Rear Derailleur Shadow+
Long Cage Rear Derailleur
Faster and shockless shifting
Low-profile design
Wide range 12-speed drivetrain with low sprocket combination -10-51T
Decreased rear derailleur and chain tension in low gear
New bumper added to rear derailleur pulley cage
Bigger 13T pulley
Fast and precise shifting performance optimized to take on any trail
Silent drivetrain in all gear positions
Stable drivetrain on rough terrain