Shimano Ultegra ST-R8170 Di2 Hydraulic Shift/Brake Lever

Shimano's Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO-WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.

- The wireless connection provides a clean cockpit, enhancing the aerodynamic effect and easy maintenance
- Unparalleled ergonomics engineering refined with feedback from professional riders
- Raised hood peak improves ergonomics
- Brake control is optimized with light and smooth lever action
- Enhanced modulation thanks to an expanded braking control area
- Compatible with wireless or wired connection
- High electronic energy efficiency, with 1.5 to 2 years of battery life from CR1632 shifter batteries
- Can be used with additional satellite shifters