Discover Shimano Di2 shifting technology at Escapa. The Shimano Ultegra Di2 Rear Disc Brake Kit, featuring wireless technology with a transmission protocol developed exclusively for this system, guarantees the fastest shifting operations ever achieved in the cycling industry. With the push of a button, gears engage quickly and reliably. The lever’s precise pressure point ensures that shifting is triggered only when the rider intentionally initiates it.
The completely redesigned ULTEGRA BR-R8170 brake caliper brings a new level of control to the world of road bikes, with optimized modulation and unprecedented braking power. The new design minimizes brake vibration. Furthermore, despite its compact size, this system is quieter and easier to maintain than ever before.
With the Ultegra 8100 series components, Shimano offers you excellent value for the money. The Japanese manufacturer’s years of experience are evident in every detail. Whether in terms of functionality, durability, or weight, top performance is achieved across the board.
Shimano is also revolutionizing Di2 components with this top-tier groupset. From now on, shifting commands are transmitted wirelessly.
In addition, the wireless chip stands out for its low power consumption. The CR1632 button cell battery has a lifespan of over 1.5 years.
This system can be fully customized using the Shimano E-Tube app. Furthermore, the shifting logic adapts to the rider’s preferences. Among other things, you can configure the shifting speed, select either full or semi-synchronous shifting modes, and assign specific functions to the program buttons on the shifter.
When braking, you have optimal control over your bike at all times thanks to SERVO WAVE technology. This provides unbeatable control and sufficient braking power.
But it’s not just the internal features that impress. Ergonomics have also been significantly improved. The recessed grip is better contoured, and the rounded brake levers stay securely under your fingers even on long descents. Additionally, the grip width can be individually adjusted.
- Flat Mount caliper design
- Extremely rigid one-piece caliper
- L05A-RF resin brake pads with cooling fins installed as standard
- Optimized heat dissipation
- Easy adjustment and maintenance
- Recommended brake rotor for best performance: Shimano RT-MT800
Technical Specifications:
Material: carbon composite
STI version: shifting | Brake lever for hydraulic disc brakes
Compatibility: Shimano 8100 Di2 groupset
Battery: CR1632 button cell
Technology: Synchronized shifting, Auto-Trim, E-Tube, SLR Evo technology
Gears: 2x12, freely programmable
Brake caliper material: aluminum
Brake fluid: mineral oil
Mounting: flat mount
Recommended brake rotors: Shimano RT-MT800
Brake pads: L05A-RF Resin with cooling fins
Brake line length: 1000 mm (front), 1700 mm (rear)
Color: black, anthracite
Manufacturer's weight: approx. 380 g
Includes:
1x left or right shift/brake lever ST-R8170(R)
1 front and 1 rear Flat Mount brake caliper with pre-filled hydraulic lines, including L05A-RF BR-R8170(R) resin brake pads
