Shimano Ultegra ST-R8170 Hydraulic Di2 STI Lever

• High performance Ultegra Wireless hydraulic Servo Wave disc brake Di2 STI's give you control, modulation and power with minimal effort in all riding conditions
• Wireless connectivity to the front and rear derailleurs for effortless trouble free gear shifts
• With Di2 technology shifting is easy and precise - just a light touch, as soft as a mouse click, is sufficient for the front or rear derailleur to instantaneously select the correct gear
• Full and semi synchronized shifting programmable, Synchro shift compatible meaning a single shifter can control both front and rear shifting which can be fully custom tuned to your riding preferences. Semi synchronized shifting means when a front shift is made the rear mech will automatically correct to the appropriate ratio
• Simply pressing tactile buttons allows effortless and comfortable shifting even when your hands are cold
• Drop bar STI with shift buttons located in a near identical place to the positions you'd assume shifting using a mechanical Shimano STI
• Hydraulic brake lever with Servo Wave provides excellent stopping power with less effort especially from the hood position
• Hydraulic reservoir tank provides pad to rotor clearance auto-adjust maintaining braking performance during pad wear
• Finely tuneable reach adjusters for the levers enable custom fitment for all hands
• Levers use CR1632 batteries which last for approximately 1.5-2 years
• Available as a left hand or right hand STI lever (does not include E-tube wires or hydraulic hoses)
• Average weight: 391g (for the pair)

Road riding has never been this much fun. That's because the redesigned Shimano Ultegra ST-R8170 dual control levers have all-new ergonomics, even more precise brake modulation, and wireless electronic shifting. This trifecta lets you focus on the next sprint, the next descent, or the next joke from your riding partner.

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.

Compatibility:

The ST-R8170 shifters are compatible with any of the Shimano components listed below:

• Shimano Dura Ace FD-R9250 2x12 speed front derailleur
• Shimano Ultegra FD-R8150 2x12 speed front derailleur
• Shimano 105 FD-R7150 2x12 speed front derailleur
• Shimano Dura Ace RD-R9250 12 speed rear derailleur
• Shimano Ultegra RD-R8150 12 speed rear derailleur
• Shimano 105 RD-R7150 12 speed rear derailleur
• Shimano Dura Ace BR-R9270 hydraulic brake caliper
• Shimano Ultegra BR-R8170 hydraulic brake caliper
• Shimano 105 BR-R7170 hydraulic brake caliper
• Shimano GRX BR-RX820-LE hydraulic brake caliper
• Shimano GRX BR-RX400 hydraulic brake caliper
• Shimano SM-BH90-JK-SSR hydraulic hose kit