Shimano RD-M8100 XT 12-Speed SGS Rear Derailleur

• Shimano, XT RD-M8100, Rear Derailleur, Speed: 12, Cage: SGS, Black
• Hyperglide+ offers fast and shockless shifting
• Silent and stable operation in all gears
• Low-profile design
• Extra wide range 12-speed drivetrain
• Decreased rear derailleur and chain tension in low gear
• New bumper added to rear derailleur pulley cage
• Bigger 13T pulleys with sealed bearings for increased drivtrain efficiency