Shimano XT M8100 Rear Derailleur

• For 1x system
• Fast and precise shifting performance optimized to take on any trail
• Silent drivetrain in all gear positions
• Stable drivetrain on rough terrain
• Faster and shockless shifting
• Low-profile design
• Wide range 12-speed drivetrain
• Decreased rear derailleur and chain tension in low gear
• New bumper added to rear derailleur pulley cage
• Bigger 13T pulley
• Compatible Chain: HG 12-speed
• Low Sprocket Max: choose; 45t (medium cage), 51t (long cage)
• Low Sprocket Min: 45t
• Max Front Difference: 0t
• Cage Length: choose; GS Medium Cage, or SGS Long Cage
• Rear Speeds: 12
• Top Sprocket Max: 10t
• Top Sprocket Min: 10t
• Total Capacity: 35t (medium cage), 41t (long cage)