The Dura-Ace R9170 Road Disc Brake combines the Di2 9170 shifters with the Hydraulic 9170 brake calipers for a combination of smooth and speedy shifting with powerful and efficient braking.
The 9170 shifters feature an ideal ergonomic shape that is comfortable in the hand and similar in size to mechanical braking versions of the shifter. The shift paddles now also feature a more defined "click" for confidence in shifting and to prevent mis-shifts. E-Tube compatibility means that the shift paddles can be customised to suit the rider.
The 9170 shifters now include Synchro-shift technology that automatically moves the rear derailleur when the front ring is changed or moves the front derailleur with the rear shifts to optimise chainline and drivetrain efficiency.
The 9170 brake calipers have been tuned to perform optimally in road racing conditions. They feature the Shimano Flat Mount system for a sleek and aerodynamic profile and Ice Tech pads for improved heat dissipation. This kit comes pre-bled and ready to use with shifter, hose, caliper and pads.
Shifter Features:
- More controllable and confidence inspiring in race conditions
- Optimally balanced hydraulic brake system for racing
- Dedicated brake lever shape, stroke, contact point, stiffness and dedicated shift paddles
- Lightweight
- Carbon composite plastic material hood
- More intuitive, quicker shifting operation
- More defined click feeling and ergonomic shift lever position
- Each switch has the option for multi-shift ON or OFF
- E-TUBE project
- Ideal ergonomic cover shape with better thickness & tenderness
- Simple set up and maintenance
- Easy replace hood cover
- Customise the shifts to suit your riding style
Caliper Features
- Optimally balanced hydraulic brake system for racing
- Light weight
- Improved heat dissipation
- ICE Technologies Freeza
- Simple set up and maintenance
- Easy tool access
- Integrated low-profile caliper design utilises Flat Mount system
- Easy wheel replacement
- Wide pad clearance and chamfer of brake pads
- Easy and clean bleeding process
- One-way bleeding
- More controllable and offers better confidence in race conditions
- Designed as optimum balance of hydraulic brake system for racing purposes
Front Mech
The Dura-Ace 9150 front derailleur delivers unmatched shift quality, for quick and smooth performance even under high pedalling torque.
- Top Gear Teeth: 46-55T
- Chain Stay Angle: 61-66
- Chain Line: 43.5
- Ergonomic shifting operation without stress
- Shimano Synchronised shift
- Race endurance for less damage in crash
- Quick and smooth front shifting under high pedalling torque
- Maintains compact and smooth appearance
Product Data
- No. Of Chainrings: Double
- Front Derailleur Mount: Band On - 31.8mm
- Front Derailleur: Shimano Ultegra
- Speed: 11 Speed
- Commuter: Yes
- Touring: Yes
- Cyclocross: Yes
- Time Trial: Yes
- Road: Yes
Rear Mech
The Dura-Ace R9150 rear derailleur
Shimano's 9150 groupset brings their Syncro-Shift technology to the road too. Syncro-Shift technology enables the front derailleur to read the position of the rear derailleur and will automatically operate the front shift to position the gears in the most efficient gear and best chain line so you'll never have to worry about front shifting and correction shifts again.
Features
- Maximum Sprocket: 30T
- Minimum Sprocket: 11T
- Maximum Front Difference: 16T
- Total Capacity: 35T
- Ergonomic shifting operation without stress
- Shimano synchronised shift
- Low profile rear derailleur design
- Shimano Shadow RD
- Race endurance for less damage in crash
- Maintains compact and smooth appearance
- Weight: 204g
Product data
- Rear Derailleur: Shimano Dura Ace Di2
- Speed: 11 Speed
- Road: Yes