Shimano Ultegra ST-R8170-LA Di2 Shift/Brake Lever - Left 2x 4th Group Black. Shimanos Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimanos 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
- TECH SPECS
| Brake Lever Actuation | Hydraulic |
| Brake Lever Use | Left |
| Color | Black |
| Defined Color | Black |
| Drivetrain Speeds | 12 |
| Front Der/Shifter Compatibility | Shimano Road Di2 |
| Hydraulic Fluid Type | Mineral Oil |
| Rotor Included | No |