The Shimano XTR RD-M9000 Shadow Plus Rear Derailleur is designed to work in harmony with Shimano’s 11-speed XTR drivetrain for cutting-edge shifting performance. An altered plate design and shallow-slant parallelogram allow for more stable shifting with less effort so gear changes are precise each and every time. The improved Shadow Plus clutch mechanism features externally adjustable tension and the low-profile design helps keep the rear derailleur clear of obstacles on the trail. As always with XTR comes the highest quality materials like sealed bearing pulleys and a carbon plate body and outer plate.