Shimano Ultegra Di2: Everything you need to customise your bike perfectly.
The new dual control lever of the ULTEGRA Di2 ST-R8050 for left allows more intuitive switching. A clearer separation between the shift buttons ensures precise shifting, even when the rider wears thicker gloves. Multi-Shift can be switched on or off individually for each and the buttons on the top cover can be programmed to control third-party devices. All functions are customisable with the E-Tube app or PC software from SHIMANO.