Digital Integrated Intelligence or Di2: with programmed automatic motion at the touch of a switch the XTR M9050 Di2 rear derailleur is quick, smooth and effortless, making for unmatched drivetrain efficiency no matter what the riding conditions

Programmed automatic motion at the touch of a switch makes this derailleur quick, smooth and effortless to shift

The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching

Using Shimano's shadow plus technology and lowest profile to date, the M9050 will help you squeeze through the narrowest of trails without worry

Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts

Synchro Shift compatible means both front and rear shifting can be done through the use of one shifter, which can be fully customized to suit your riding needs

Carbon fibre outer and Aluminium inner pulley plates are the perfect balance for weight saving and durability

Specifically designed to work with XTR M9000 11-speed Dyna-Sys 11-40T cassette and drivetrain

11-speed E-tube Di2 compatible

Max low sprocket: 40T

Total capacity: 37T