Shimano Dura-Ace ST-R9170 Di2 Hydraulic Shifter/Brake Kits: A completely new level of reliability and braking performance is achieved with Dura-Ace disc brakes. Even under challenging weather conditions, the rider can set maximum trust in braking performance. Thanks to the flat mount construction, the BR-R9170 hydraulic disc brake caliper is mounted direct to the frame, giving it a flat profile and higher efficiency. The heat dissipation is greatly improved and this gives the rider stable braking performance throughout the entire ride.
These are sold as a front kit or a rear kit separately.
- Application: Road, Cyclocross
- Brake Type: disc brake, hydraulic
- Mount: flat mount
- Hydraulic Fluid: Shimano mineral oil
- Hose Length: 1000 mm (front) / 1700 mm (rear)
- Material: aluminum, painted, steel bolts (4 mm)
- Caliper info:
- Construction: 2-piece
- Brake Pistons: 2 pistons (ceramic)
- Brake Pads: L02A resin with cooling fins
- Recommended Rotor: SM-RT900 (front 140/160 mm, HR 140 mm (160 mm optionally with adapter)
- One Way Bleeding: yes
- Technology: Ice-Tech
