Shimano Dura-Ace ST-R9170 Di2 Hydraulic Disc STI Lever & Caliper Set (Right/Front) | Elite Road Bike Braking & Shifting
Pro-Level Di2 Electronic Shifting with Hydraulic Disc Brake Power
The Shimano ST-R9170 Hydraulic Disc Di2 STI Set (Right/Front) delivers world-class road cycling performance, combining precision electronic shifting with powerful hydraulic disc braking. As part of the flagship Shimano Dura-Ace R9170 groupset, this system is built for riders who demand maximum control, smooth modulation, and effortless gear changes in all conditions.
- Dura-Ace Di2 electronic shifting system
- Integrated hydraulic disc brake lever
- Lightweight carbon and titanium construction
- Smooth, responsive road bike braking and shifting
- Ideal for high-performance road cycling and racing
Ideal for road racing, endurance riding, and performance cycling, this STI lever and caliper setup ensures reliable braking and lightning-fast shifting.
Shimano Di2 Electronic Shifting | Instant & Accurate
Featuring Shimano Di2 E-Tube technology, this STI lever offers:
- Fast, precise electronic gear changes with minimal input
- Consistent performance without cable stretch, corrosion, or contamination
- Smooth shifting even in cold, wet, or high-intensity conditions
- Ergonomic tactile shift buttons for intuitive operation
Enjoy effortless, race-ready shifting performance at the touch of a button.
Hydraulic Disc Braking | Power, Control & Modulation
The integrated hydraulic brake lever and BR-R9170 flat mount front caliper provide:
- Strong, reliable stopping power in all weather conditions
- Excellent brake modulation for precise control
- Reduced hand fatigue with less effort required
- Auto-adjusting pad clearance via hydraulic reservoir system
Perfect for confident braking on fast descents and technical road conditions.
Lightweight, Race-Optimised Construction
- Carbon fibre lever blades for stiffness and reduced weight
- Carbon composite bracket body for durability
- Titanium clamp band and fixing bolt for weight savings
- Approximate weight: 360g per pair
Engineered for elite-level performance and efficiency.
Custom Fit & Ergonomic Design
- Classic Shimano STI lever layout for familiar feel
- Reach adjustment for personalised hand positioning
- Free stroke adjustment to fine-tune brake engagement
- Comfortable for long-distance and competitive riding
E-Tube Integration & Compatibility
- Compatible with Shimano Di2 E-Tube electronic systems
- Features dual E-Tube ports for system connectivity
- E-Tube wires/cables sold separately for custom installation
What’s Included
- 1 × Shimano ST-R9170 Right STI Lever (pre-bled)
- 1 × BR-R9170 Flat Mount Front Brake Caliper
- Hydraulic hose and Shimano mineral oil
- Brake pads pre-installed
- Note: Rotors, adapters, and Di2 cables not included
The Shimano ST-R9170 Di2 STI Set delivers flagship Shimano Dura-Ace performance with industry-leading electronic shifting precision. It is a powerful, controlled hydraulic braking system built for serious cyclists and competitive riders that offers reliable performance in all weather conditions.