Ultegra ST-R8170 Shift Lever

Shimano's new Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO-WAVE technology. The all-new DI2 platform, used on both Dura-Ace and Ultegra, untethers the shifters while delivering the world's fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.
Features:

• 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.
• Enhanced modulation thanks to an expanded braking control area.
• Compatible with wirelessly or wired connection.
• Available to additional satellite shifters.
• High electronic energy efficiency.
• 1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries.