Shimano XT M8120 12 Speed – Shadow+ – SGS Rear Derailleur For Double Ring – Grey

The RD-M8120-SGS from Shimano is a rear Derailleur, it allows for faster and shockless shifting and enables for a silent drive train in all gear positions. It has a 13T pulley. In Addition, it has an extra wide range with a front double 36T-26T and 12-speed drivetrain with a low sprocket combination-10-45T.