For the past four years, professional riders have been riding Shimano Dura-Ace components with Di2 electronic shifting technology over the highest mountains, the worst cobbles and through the most extreme weather conditions imaginable. As of this year, Shimano Ultegra will also be fitted out with this groundbreaking technology.
What are its characteristics? Just the same as for Dura-Ace. Changing gears becomes easier, effortless and faster by simply touching the shift buttons. Control at your fingertips. Additional benefits include an automatic trimming front derailleur, great accuracy plus easy adjustment and installation. Di2 continues its great success with Shimano Ultegra. And it makes no difference if these roads are cobbles, tarmac or mud.