Features
- This J-Kit is a complete, pre-bled set with front (left) Ultegra ST-R8170 Di2 dual-control lever, BR-R8170 hydraulic disc brake caliper, hydraulic hoses and fittings
- Ultegra ST-R8170 brake lever brings enhanced modulation and optimized brake control to every ride by employing Shimano SERVO-WAVE technology
- The Di2 platform—used on both Dura-Ace and Ultegra—untethers the shifters while delivering fast, reliable wireless shifting
- Wireless connection provides a clean cockpit, enhances the aerodynamic effect and offers easy maintenance; plus the shifting is customizable via the Shimano E-Tube Project app
- High electronic energy efficiency means you get 1.5 to 2 years of battery life with the easy-to-change CR1632 shifter batteries (included)
- Raised hood peak improves lever ergonomics; ergonomic engineering has been refined with feedback from pro cyclists
- Lever offers light, smooth action and is compatible with wireless or wired connection
- Ultegra BR-R8170 disc brake caliper brings a new level of control to road cycling with enhanced modulation and a quicker initial braking point
- Despite its smaller construction, the caliper system is quieter than ever and easier to maintain
- 10% wider pad clearance decreases brake noise, and the expanded braking control area offers enhanced modulation
- Maintenance-friendly bleeding process
Imported.
View the Shimano Di2 Product LineView all Shimano Disc Brake Calipers
Technical Specs
Road Cycling |
Flat Mount |
2 Pistons |
Front |
Left |
No |
Yes |
Mineral Oil |
1000 millimeters |
Organic (Resin) |
Aluminum |
374 grams |
Reviews
There are no reviews yet.