Key Features:

• Digital Integrated Intelligence or Di2: with programmed automatic motion at the touch of a switch. The Cues RD-U6070 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 M8150 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
• Aluminium pulley plates for weight saving and durability
• Specifically designed to work with 11-speed cassette and drivetrain
• 11-speed E-tube Di2 compatible
• Max low sprocket: 50T
• Total capacity: 39T (Di2 system limited)