Derailleur control double lever DURA-ACE ST-R9170-L

• ・More control and peace of mind in racing conditions.
• "Optimal balancing of the hydraulic braking system for racing.
• Specific brake lever shape, stroke, point contact and rigidity, dedicated shift paddles
• " Lightweight
• -Carbon/plastic composite shell cover
• ・More intuitive and faster shifting
• "More precise shifting and ergonomic position of the gear shift lever
• ・Customizable function for all practices
• "Possibility to activate or deactivate the multiple gear shift
• -E-TUBE PROJECT
• ・Optimal power transmission and good grip
• "Perfectly ergonomic shape of the hand rest, which is also thicker and softer

Features

With a compact overall shape, the DURA-ACE R9150 shifters combine both SHIMANO 's hydraulic disc brake technology and class-leading DI2 electronic shifting in a package that's ready for the toughest racing situations. Updated feel and button layout ensure precise shifting, while improved ergonomics ensure comfort and allow you to focus on the effort.