Shimano Di2 ST-R9170+BR-R9170 Dura Ace Disc Brake Set



Product Details

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.


Application: Road, Cyclocross
Brake Type: disc brake, hydraulic
Mount: flat mount
Hydraulic Fluid: Shimano mineral oil
Hose Length: 1000 mm (front) / 1700 mm (rear)

Technical Inforamtion - Lever:

Shift Lever Material: GFRP
Brake Lever Material: aluminium, painted
Body Material: aluminium, painted
Main Cylinder Material: aluminium
Gearing: 2-speed, 11-speed (programmable)
Type: dual control (STI)
Shift Lever: Di2 (electronic)
Brake Lever: hydraulic
Multi-Shift: hold
Compatible Derailleur: road 11-speed
Handlebar Diameter: 23.8 – 24.2 mm
Reach Adjust: yes (tools required)
Contact Point Adjust: yes
Brake Hose: SM-BH90-JK-SS
Hose Connection: straight
Bleeding Tool: funnel (with adapter Y-0C698050 for ST-R9170)
Number of E-Tube Connections: 0
Number of E-Tube Ports 2
Number of Sprinter Shifter Ports: 0
Technology: Servo Wave, E-Tube

Technical Information - Caliper:

Material: aluminium, painted, steel bolts (4 mm)
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


- 2 x Shimano Dura Ace BR-R9170 + Di2 ST-R9170 disc brakes, front and rear 
- 1 x Shimano SM-BH59-JK-SS 1000 mm front brake hose
- 1 x Shimano SM-BH59-JK-SS 1700 mm rear brake hose
- 2 pairs of Shimano L02A brake pads
- 1 x adapter for a 160 mm rotor (front only)
- 2 hose connecting bolt units
- 2 x type A caliper bolts (front only)
- 2 x caliper bolts for 25 mm frame diameter (rear only)
- 1 x Shimano TL-EW02 wiring plug tool
- incl. Shimano TL-BH61 assembly tool
bolts for 10/15/20/30/35 mm frame diameter not included
- rotor not included

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Shimano Di2 ST-R9170+BR-R9170 Dura Ace Disc Brake Set