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 our fastest, most reliable wireless shifting. Your time on the bike is precious, let Shimano make it even better.

Features: & Benefits:

• 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)

The ULTEGRA R8170 disc brake caliper brings a new level of control to the road cycling world with enhanced modulation and a quicker initial braking point. Despite its smaller construction, the system is quieter than ever and easier to maintain.

Features & Benefits:

• 10% wider pad clearance decreases brake noise
  
• Maintenance-friendly bleeding process

SKUs
Product Code: IR8170DRRDSC170F (Rear)
Model No: ST-R8170-KIT