Shift/Brake Lever Shimano Ultegra ST-R8170 Di2 Right, 12-speed

Shift/Brake Lever Shimano Ultegra ST-R8170 Di2 Right, 12-speed

The Shimano ULTEGRA Di2 ST-R8170 is a right-hand 12-speed STI Dual Control shift/brake lever designed for 2x12 road drivetrains with hydraulic disc brakes. The latest-generation Ultegra Di2 combines refined ergonomics, precise braking control and wireless electronic shifting for maximum efficiency in racing and training.

SHIMANO’s proven SERVO WAVE technology enhances brake modulation and delivers confident control at high speeds. The updated DUAL CONTROL lever design with raised and rounded hoods improves grip and aerodynamics. The wireless Di2 system features Shimano’s proprietary secure chip, ensuring extremely low interference, fast processing speed and high energy efficiency. Through the E-TUBE app, riders can customize shift speed, select full or semi-synchronized shifting modes and assign additional functions to programmable buttons. The result is the fastest and most reliable shifting performance ever offered by the Ultegra series.

• Application: Road
• Group: Shimano Ultegra Di2 R8150
• Model: ST-R8170-R
• Type: Dual-Control (STI), Di2
• Mount: Right
• Rear speeds: 12-speed
• Optical gear display: No
• Reach adjustment: Yes
• Handlebar diameter: 23.8–24.2 mm
• Brake type: Hydraulic disc brake
• Recommended caliper: BR-R8170
• Compatible electric wire: EW-SD300
• E-TUBE Project: Yes
• E-TUBE ports: 2
• E-TUBE plugs: 0
• Di2 wireless chip: Yes