Shimano Ultegra 12 Speed ST-R8170D Di2 Shift/Brake Lever/Brake Caliper

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Your time on the bike is precious, let Shimano make it even better. Ultegra ST-R8170 brake levers bring enhanced modulation and control to every ride by employing Shimano's proven SERVO-WAVE technology. The Di2 platform untethers the shifters while delivering fast and reliable wireless shifting. The BR-R8170 hydraulic 2-piston disc brake caliper brings a new level of control to the road cycling world with improved modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.

• The wireless connection provides a clean cockpit, enhancing the aerodynamic effect and easy maintenance
• Wider pad clearance decreases brake noise
• Maintenance-friendly bleeding process
• Unparalelled ergonomic features, such as raised hood peaks on levers
• Brake control is optimized with light and smooth lever action
• Enhanced modulation thanks to an expanded braking control area
• Compatible with wireless or wired connection
• Includes L05A-RF pads
• Includes fork adapter for 160mm rotors