Shimano XTR RD-M9100 Rear Derailleur

Larger 13T pulleys increase efficiency and chain management while compatibility with SHIMANO's new 12-speed cassettes boosts range.

• Optimized for new drive system
• Decreased rear derailleur tension at low gear position, to prevent high chain tension at low gear
• Add bumper at rear derailleur pulley cage
• Bigger 13T pulley
• 10-51T (12-speed)
• SHIMANO SHADOW RD+
• Enhance shifting performance
• Silent drivetrain
• Low profile design
• Low sprocket combination