The Ultegra R8050 Di2 groupset is the latest development in the evolution of the electronic groupset from Shimano. Taking technology from the Dura-Ace Di2 groupset while at the same time refining the previous version of their Ultegra Di2 groupset Shimano have tweaked the ergonomics of their Di2 shifters and included more shifting options to enable you to fine tune your setup to suit you. With improved clearance for wider rims and tyres as well as a new Shadow Technology rear derailleur that gives a lower, more aero profile and increased protection from crash damage the Shimano Ultegra R8050 Di2 groupset marks a significant development in the evolution of Shimano’s Di2 electronic drivetrain.