The new Shimano ULTEGRA ST-R8170 brake lever offers improved modulation and control, thanks to the proven Shimano SERVO WAVE technology. The brand new Di2 platform, used on both DURA-ACE and ULTEGRA, provides our fastest and most reliable wireless shifting. Your time on the bike is precious, Shimano can make it even better.

- Clean cockpit: wireless connection improves aerodynamics and facilitates maintenance
- Unparalleled ergonomics, refined with professional feedback, thanks to the raised hood
- Optimized brake control, lighter and smoother lever action, and optimized modulation thanks to a wider braking control area
- Compatible with both wired and wireless connection
- Available for additional satellite shifters
- 1.5 to 2 years of battery life with easily replaceable CR1632 shifter batteries
- Left lever
- Weight: 196 g