SHIMANO Ultegra Di2 ST-R8170/ BR-R8170 Hydraulic Disc Brake/Shift Lever Kit 2×12-Speed Wireless Flat Mount
The Shimano Ultegra Di2 R8170 Hydraulic Disc Brake/Shift Lever Kit is the control center for Shimano’s 12-speed road shifting system and brings new shifter ergonomics to Di2 along with wireless electronic shifting. Coupled with Servo-Wave brake lever action and Shimano’s simple bleeding process – you get excellent braking performance along with the latest in shifting technology.
Clean Cockpit: Wireless connection enhances the aerodynamic effect and easy maintenance
Unparalleled ergonomics engineering refined with pros’ feedback
Raised hood peak improves ergonomics
Optimized brake control: Lighter, smoother lever action and enhanced modulation thanks to an expanded braking control area
Compatible with wireless or wired connection
Works with add-on satellite shifters
High electronic energy efficiency: 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries
Maintenance-friendly bleeding process
Front caliper is compatible with 160mm rotors
Shifter Style: Lever (Road)
Speed: 12 Speed
Derailleur Compatibility: Shimano Road (12 Speed)
Shift Mechanism: Electronic (Wireless)
Adjustable Reach: Yes
Brake Type: Hydraulic
Brake Fluid: Mineral Oil
Brake Mount: Flat Mount
Brake Pads: Organic/Resin with Fin
Hose Length: 1000mm (Front), 1700mm (Rear)
Weight: 391g (Pair) | 146g (Front Caliper) | 136g (Rear Caliper)
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.