Road riding has never been this much fun. The redesigned Shimano Ultegra Di2 ST-R8170 12 Speed Shifter and Flat Mount Caliper has all-new ergonomics, even more precise brake modulation and wireless electronic shifting, letting you focus on the next sprint, the next descent, or the next joke from your riding partner.

Shimano's ULTEGRA ST-R8170 brake levers bring enhanced modulation and control to every ride using Shimano's proven SERVO WAVE technology. The all-new Di2 platform, shared with Dura-Ace, untethers the shifters while delivering Shimano's fastest, most reliable wireless shifting.

Features
Clean cockpit: wireless connection enhances the aerodynamic effect and easy maintenance
Unparalleled ergonomics engineering refined with pro feedback
Raised hood peak improves ergonomics
Optimized brake control
Lighter, smoother lever action
Enhanced modulation thanks to an expanded braking control area
Compatible with wired and wireless connection
Compatible with additional satellite shifters
High electronic energy efficiency
1.5 to 2 years of battery life with easy-to-change CR1632 shifter batteries

Shop the Shimano Ultegra Di2 ST-R8170 Shifter and Caliper now at CCACHE.