Shimano ULTEGRA Di2 Disc Brake - 2 Speed

Road cycling has never been so much fun. The reason for this is the new ULTEGRA ST-R8170 DUAL CONTROL shift/brake levers with their optimized ergonomics, even more precise brake modulation, and wireless electronic shifting function. Thanks to these three improvements, road cyclists can now fully focus on the next sprint, the next descent, or the next joke from a fellow rider.

The new ULTEGRA ST-R8170 brake lever offers improved modulation and control on every ride, thanks to the proven SERVO WAVE technology from SHIMANO. The brand new Di2 platform is used in DURA-ACE and ULTEGRA, where it ensures the fastest and most reliable wireless shifting. Time in the saddle is valuable for every rider, and thanks to SHIMANO, it gets even better.

Features:

Tidy cockpit: The wireless connection improves aerodynamics and makes maintenance easier
Unique ergonomics, based on professional feedback
Optimized brake control
Compatible with cable and wireless connection
Available for additional satellite shifters
High energy efficiency
Brake lever: ST-R8170
Brake caliper: BR-R8170
Brake hose: SM-BH90-JK-SSR
Rec. Rotor: RT-MT800
SERVO-WAVE: yes
Adjustable free stroke: yes
Reach adjustment: Integrated (with tool)
Open clamp band: No
Lever material: Aluminum
Holder material: Carbon fiber reinforced plastic
Caliper material: Aluminum
Pistons: 2
Shifting stages: 2-speed
Caliper mount: FM (Flat-Mount)