Shifter Shimano ULTEGRA Di2 ST-R8170-R 12-speed

The Shimano ULTEGRA Di2 ST-R8170-R shifter is designed for a 12-speed rear gear system.

Features

• Clean cockpit: wireless connection enhances aerodynamics and makes maintenance easier.
• Unparalleled ergonomics refined with feedback from professional riders.
• Raised hood peak improves ergonomics.
• Optimized brake control.
• Lighter, smoother lever action.
• Expanded braking control area enhances modulation.
• Compatible with wired and wireless connections.
• Compatible with additional satellite shifters.
• High electronic energy efficiency.
• Shifter CR1632 batteries last 1.5 to 2 years and are easy to replace.
• Rear gear: 12-speed.
• Recommended brake caliper: BR-R8170.