Shimano ST-R7170 (R). BR-7170(R) rear brake

Experience the revolution of Shimano 105 Di2. This dual-control lever brings lightning-fast, intuitive electronic shifting to more riders than ever. Its wireless design creates a clean, modern cockpit aesthetic, while the long-life battery keeps you shifting for years. Enjoy pro-level ergonomics inherited from Dura-Ace, with a raised hood for improved comfort and support. Fine-tune your fit with Reach Adjust and customize button functions via the E-TUBE app for a truly personalized ride. Paired with the BR-7170 hydraulic rear brake for flawless control