The Shimano XTR RD-M9120 12-speed rear derailleur features an elegant yet aggressive angled design and an attractive anodised aluminium surface. The derailleurs feature bigger 13-tooth pulleys and include Shimano’s proven Shadow RD+ low profile technology. This derailleur is especially designed for marathon riders and cycle tourers who appreciate a wide range of gears when riding off the road. Bigger 13 teeth guide and tension pulleys ensure secure chain travel in all gears. Together with the Shimano Shadow RD+ Design with friction stabilizer, they also improve chain stabilization. The clean design with anodized aluminium surfaces embodies the high technical development standard modern MTB tracks require. Features For double drivetrains. Compatible with 12-speed Shimano HG+ chains, such as Shimano CN-M9100. Shimano Shadow RD+. Rear derailleur body made of aluminium, anodized. Body and outer guide plate made of carbon-fibre reinforced plastic. 8 PTFE-coated connection pins for high shifting precision. 13-tooth pulleys with sealed ball bearings. Long Cage (SGS) Max. large sprocket: 45 teeth. Min. large sprocket: 45 teeth. Max. small sprocket: 10 teeth. Min. small sprocket: 10 teeth. Total capacity: 41 teeth. Weight: approx. 241 g.