Ultegra R8050 Di2 Shadow Rear Derailleur

Shimano Ultegra Di2 Shadow rear derailleur.

Sleek integrated appearance
New lowprofile design
Shimano Shadow RD
Race endurance
Optimized slant angle
Maintain race concentration with more intuitive shift control
System communication with front derailleur
Shimano Synchronized Shift
Wide compatibility
Short cage covers: T to T
Medium cage covers: T to T
Average Weight: 242 grams (SS type), 249 grams (GS type)