Complete your TT bikes Di2 upgrade with the Ultegra Di2 TT Brake/Shift Levers, making shifting as simple and precise from your base bar as it is from the aero extensions. These shifters integrate seamlessly with any internally-routed base bar and allow for greater shifting control, whether sprinting out of the starting gate or popping up the sneaky climb mid-course. The ST-R8060 Brake and Shift levers take inspiration from the lighter Dura-Ace shifters, with an aero-focused design and single-button shifters. With the evolution of Syncro Shift, the Di2 system optimizes front and rear gear combination when you shift the rear derailleur, which reduces dramatic cadence changes between gears.