evo.com | Shimano Rear Derailleurs > Shimano's 1x12 drivetrains have finally experienced the tech trickledown that's a hallmark of the Japanese legends. The Shimano Deore RD-M6100 12-Speed Rear Derailleur performs as well as their XTR line, with a much smaller price tag. The clutch isn't externally adjustable, but it certainly works just as well as its boutique brethren. Get this while you can! Compatible with Shimano 12-Speed Drivetrains Shadow+ Chain Stabilizer Provides a simple, lightweight chain control solution. Efficient Pulley Teeth For better shifting and smoother driving. Changes Gears Smoothly Largest Cog 51T | Shimano Deore RD-M6100 12-Speed Rear Derailleur 2022 - Shadow Plus