Shimano XTR M9000 Rear Derailleur Stablizer Unit

This is a replacement for the stabilizer unit of your Shimano rear derailleur, also commonly called a roller clutch assembly. A functional stabilizer keeps chains locked onto single ring setups, and reduces chainslap, mis-shifts, and ghost shifting.

- Fits XTR RD-M9000, XT RD-M8000, SLX RD-M7000-11