The Shimano Ultegra ST-R8050 Di2 shifters bring electronic precision to 11-speed road setups, offering a refined interface for riders seeking seamless performance. Designed for mechanical rim brakes, these Dual Control levers integrate shifting and braking into a compact, ergonomic form. The ST-R8050 series shares its DNA with Dura-Ace Di2, delivering pro-level responsiveness at a more accessible price point.
Each lever features clearly separated shift buttons with a tactile click, ensuring confident operation even with thick gloves. Hidden buttons atop the hoods can be programmed via Shimano’s E-Tube software to control functions like synchronized shifting or GPS head unit navigation. The levers also support multi-shift customization, allowing riders to tailor gear changes to their preferences. Weighing approximately 295 grams per pair, they strike a balance between lightweight design and robust functionality.
Compatible with Shimano’s 11-speed Di2 systems, the ST-R8050 levers connect seamlessly with components like the EW-RS910 junction box and BT-DN110 battery. Their design accommodates additional accessories, such as sprinter shifters, enhancing versatility for various riding styles . Whether you’re upgrading from mechanical shifting or seeking a reliable replacement, these shifters offer precise control and adaptability for diverse road cycling demands.





















