The Shimano Ultegra ST-R8050-R is the right-hand Di2 Dual Control Lever for Ultegra R8050 11-speed rim brake road groupsets. Combining electronic precision shifting with hydraulically-smooth brake actuation, it delivers the confident control that serious road cyclists demand — whether racing, training, or riding long distances.

Highlights

• Electronic Di2 shifting: Instant, precise gear changes at the touch of a button with no mechanical cable pull required.
• Programmable hood buttons: Hidden ST buttons on top of the hoods can be configured to control Synchro Shift modes, scroll through head unit pages, or other custom functions.
• Clearer button separation: Updated shift button layout provides distinct tactile feedback, making it easy to locate and operate the right button even in thick gloves.
• Reach adjustment: Lever reach can be adjusted to suit different hand sizes for an ergonomic, confident grip position.
• Satellite shifter port: Dedicated port for connecting a sprint shifter or bar-end satellite button for TT or triathlon setups.
• Dual E-Tube SD50 ports: Two EW-SD50 ports for clean, flexible wiring integration with the E-Tube Di2 system.
• Textured ergonomic hood: Shaped for long-ride comfort with a tactile hood surface for confident grip in all conditions.

Di2 Integration & Customisation

The ST-R8050-R is part of Shimano's E-Tube platform, enabling full system customisation via the E-Tube Project app. Configure Synchro Shift, Multi-Shift, and programmable button functions to match your riding style and cockpit preferences. Firmware is field-updatable as Shimano releases improvements.

Compatibility & Fit

Designed for Shimano Ultegra R8050 Di2 11-speed rim brake drivetrains. Uses EW-SD50 E-Tube wiring (not compatible with EW-SD300 without the EW-AD305 adapter). Pairs with R8050-series derailleurs and components. Right lever only — controls rear derailleur shifting and front brake (Australian convention: right lever = front brake). Sold as a single right lever.