Shimano XTR RD-M9100 12-Speed Rear Derailleur GS Cage

The latest Shimano flagship XTR the RD-M9100-SGS derailleur is for 1x12s 10-51T configuration. It goes without saying that this one has it all. The ultimate the pinnacle the XTR derailleur packs all of Shimano’s 27+ years of innovation into the lightest possible package.

• Designed with a Shadow RD+ clutch to reduce chain slap and create a quiet drivetrain with less distraction
• Decreased rear derailleur tension at low gear positions prevents high chain tension
• Features a larger 13-tooth pulley