Shimano ST-R785/BR-RS785 Di2 Hydraulic Disc Lever/Brake Set

The Shimano ST-R785 / BR-RS785 Di2 Hydraulic Disc Lever and Brake Set was one of Shimano’s first fully integrated hydraulic disc braking systems designed specifically for electronic road drivetrains. Built around Shimano’s Di2 shifting platform, this system combines precise electronic shifting with powerful hydraulic braking, delivering consistent control and confident stopping performance in a wide range of riding conditions.

Developed for performance-oriented road and endurance riders, the ST-R785 lever units provide the familiar ergonomic shape Shimano road riders expect while integrating Di2 electronic shift buttons and hydraulic brake controls into a single compact design. The hood shape offers a comfortable grip for long rides while maintaining easy access to the shifting paddles from both the hoods and drops.

Paired with the levers are the BR-RS785 flat-mount hydraulic disc brake calipers. These calipers provide smooth, predictable braking power with excellent modulation, allowing riders to apply exactly the amount of braking force needed in technical descents, wet conditions, or fast group riding situations. Hydraulic braking systems also reduce hand fatigue by requiring less lever effort compared to traditional mechanical disc or rim brake systems.

The system integrates seamlessly with Shimano Di2 electronic drivetrains, allowing riders to benefit from quick, reliable shifting while maintaining clean cable management around the cockpit. Internal hydraulic routing and electronic wiring keep the front end tidy while contributing to a modern, performance-focused aesthetic.

Shimano engineered the system for durability and consistency as well. Hydraulic disc brakes maintain strong braking performance in all weather conditions, making them especially valuable for riders who train and race in varied environments. Combined with Shimano’s proven Di2 technology, the ST-R785 / BR-RS785 system delivers both performance and reliability.

Whether used on endurance road bikes, gravel-capable road platforms, or performance-focused training machines, this lever and brake set provides the precise control, braking confidence, and electronic shifting performance that riders expect from Shimano’s advanced drivetrain systems.

Shimano ST-R785 / BR-RS785 Di2 Hydraulic Disc Lever & Brake Set Specs at a Glance

• Lever Model: Shimano ST-R785 Di2 hydraulic shift/brake levers.
• Caliper Model: Shimano BR-RS785 hydraulic disc brake calipers.
• Shifting System: Shimano Di2 electronic shifting.
• Brake Type: Hydraulic disc brake.
• Mount Type: Flat mount calipers.
• Application: Road and endurance road bikes with Di2 drivetrains.

Design Benefits

1. Electronic Shifting Precision: Shimano Di2 technology provides fast, accurate shifting with minimal effort.
2. Hydraulic Braking Power: Hydraulic disc brakes deliver strong stopping performance with excellent modulation.
3. All-Weather Reliability: Disc braking maintains consistent performance in wet or challenging riding conditions.
4. Ergonomic Hood Design: Comfortable lever shape supports long rides and multiple hand positions.
5. Integrated Cockpit Design: Combines shifting and braking functions into a clean, efficient road cockpit system.

Final Take

The Shimano ST-R785 / BR-RS785 Di2 Hydraulic Disc Lever and Brake Set marked a major step forward in road braking and shifting integration. By combining Shimano’s precise Di2 electronic shifting with powerful hydraulic disc braking, this system provides confident control, reliable performance, and a modern cockpit solution for performance-oriented road bikes.