Shimano Di2 ST-R8170 + BR-R8170 + Hose Front Disc Brake Kit

The Shimano Di2 ST-R8170 + BR-R8170 front disc brake kit is the ideal solution for cyclists seeking professional performance, maximum braking precision, and a clean, extremely aerodynamic cockpit design. Designed for the latest generation of road bikes, this Shimano Di2 system combines evolved ergonomics, wireless technology, and absolute reliability even on the most demanding rides.

Thanks to the wireless connection, the cockpit is tidier, improving the bike's aerodynamics and simultaneously simplifying installation and maintenance. The lever ergonomics have been perfected based on professional feedback, offering a more natural and secure grip in all riding conditions.

The raised hood further improves comfort and control, while the brake lever action is lighter and smoother, ensuring precise and progressive braking. Optimized modulation, achieved through a wider braking control area, allows for superior braking power management both downhill and in technical situations.

The system is compatible with both wired and wireless connections and supports the addition of supplementary satellite shift levers, offering maximum customization for every racing setup.

From an energy perspective, the Shimano Di2 groupset ensures high electronic efficiency, with battery life ranging from 1.5 to 2 years thanks to easily replaceable CR1632 batteries.

The 10% increased pad clearance contributes to reduced brake noise, improving quietness and comfort during pedaling. Furthermore, the low-maintenance bleeding procedure makes the system easy to manage over time, ensuring consistent and reliable performance.

Technical Features

• Shimano Di2 front disc brake kit
• Lever model: ST-R8170
• Brake caliper model: BR-R8170
• Brake hose included
• Wireless connection for a cleaner, more aerodynamic cockpit
• Evolved ergonomics developed with professional feedback
• Raised hood for increased comfort and control
• Lighter and smoother lever action
• Optimized braking modulation
• Compatible with wired and wireless connections
• Compatible with additional satellite shift levers
• High electronic energy efficiency
• 1.5 to 2 years battery life
• Easily replaceable CR1632 batteries
• 10% increased pad clearance to reduce noise
• Low-maintenance bleeding procedure

Perfect for those looking to upgrade their road bike with a high-performance, reliable, quiet Shimano Di2 braking system designed to ensure maximum control in every situation.