Shimano Ultegra Di2 ST-R8170-L Left\/Front Shifting\/Brake Lever 2x12S

Shimano’s new Ultegra Di2 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 our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.Main 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 wired and wireless 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 (Initial shifter batteries may have a shorter battery life than stated above).Features: Model: ST-R8170-L. Series: Shimano Ultegra Di2 R8100. Color: Black (Series color). Weight: 391 g (pair). Speed: 2x12S. Shifter type: Dual Control Lever. Orientation: Left/Front. Brake hose (kit): SM-BH90-JK-SSR. Hose joint: Straight. Recommended brake caliper: BR-R8170. Brake fluid: Shimano mineral oil. Clamp band diameter: 23.8 – 24.2 mm. Reach adjust. Di2 connectivity wireless (Di2 shifting). Firmware update by E-Tube Project app. Battery: CR1632 x 1.References: ISTR8170LF: Shimano Ultegra Di2 ST-R8170-L Shifting/Brake Lever, 2x12S, Left/Front, Dual Control Lever.