Shimano CUES U8050 10 Spd MTB Rear Derailleur

• Digital Integrated Intelligence or Di2: with programmed automatic motion at the touch of a switch. The Cues 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 technology low profile design
  Derailleur contains a saver (fuse) function, where the inner structure is protected from strong impacts

Specs:

• Aluminium pulley plates for weight saving and durability
  Specifically designed to work with 10-speed cassette and drivetrain
  Compatible with Q Auto
  10-speed E-tube Di2 compatible
  Max low sprocket: 43T
  Total capacity: 32T (Di2 system limited)
• Groupset CUES Di2
  Series U8050
  Type GS
  Speed 10