Shimano

105 ST-R7170-RE Di2 Lever with BR-R7170 Hydraulic Disc Brake - Rear 12-Speed

Wireless Precision. Pro-Level Performance.

The Shimano 105 ST-R7170 Di2 brings elite electronic shifting and hydraulic braking performance to more riders than ever. Paired with the BR-R7170 Flat Mount hydraulic caliper, this rear setup delivers smooth, responsive control with clean aesthetics and enhanced functionality.

• Wireless Di2 shifting for instant, intuitive gear changes and a clutter-free cockpit
• E-TUBE Project app compatibility for full customization of button functions and firmware updates
• Ergonomic lever design with adjustable reach for a personalized fit
• Low-profile BR-R7170 hydraulic caliper features 10% wider pad clearance to minimize rotor rub
• One-way bleeding system simplifies maintenance
• Includes L03A finned resin brake pads for optimal cooling and quiet performance
• Includes 2 x CR1632 batteries

Whether youre upgrading your road ride or building a race-ready machine, this Shimano 105 Di2 combo offers precision, performance, and sleek integration at an unbeatable value.