Shimano Hydraulic brake/rear derailleur lever Ultegra Di2 ST-R8170

Shimano ULTEGRA ST-R8170 brake levers bring enhanced modulation and control to every output using proven SERVO WAVE technology from Shimano.

• Streamlined cockpit: wireless connection improves aerodynamics and facilitates maintenance.


• Optimized brake control: smoother, smoother lever operation. Improved modulation thanks to an extended braking control zone.


• Compatible with wired and wireless connection.


• Available for additional satellite controls.