Shimano Ultegra R8050 Di2 11-speed Rear Derailleur

The Shimano Ultegra R8050 Di2 rear derailleur has been completely redesigned. The Shadow technology has now been applied like with the R9100 Dura Ace rear derailleur. This application creates a more sheltered position directly underneath the cassette, which also improves the aerodynamic properties and reduces the changes of damage from external causes.