Shimano Ultegra Di2 R8170 12s Groupset

Shimano Ultegra R8170 Di2 Disc Groupset – Elite Performance, Exceptional Value

With technology directly inherited from Shimano’s flagship Dura-Ace, the Ultegra R8170 Di2 Disc Groupset delivers a remarkable blend of performance, reliability, and value. It brings many of the same innovations found in the top-tier model, with only a minimal weight difference, making it one of the most compelling upgrades for serious road cyclists.

Shifting is lightning-fast, precise, and virtually silent, thanks to Hyperglide+ tooth profiles that create a seamless interface between the chain, chainrings, and cassette. This design ensures smooth, consistent shifting even under load, while the new 12-speed configuration offers improved gear progression for an effortlessly fluid ride.

Braking performance is equally impressive. Redesigned calipers provide greater clearance between the rotor and pads, significantly reducing the rubbing and scraping noises often experienced in wet or gritty riding conditions. The Servo Wave levers, refined for better ergonomics, deliver quicker pad engagement and a more progressive braking feel, giving you greater control and confidence on descents and in technical situations.

The semi-wireless design creates a clean, streamlined aesthetic, with no wires between shifters and derailleurs. The central battery remains hidden within the seatpost or seattube, directly wired to the derailleurs. The charging port is now integrated into the rear derailleur, eliminating the need for a junction box and making charging effortless. Shifters are powered by CR1632 coin cell batteries that last 1.5 to 2 years, ensuring long-term reliability with minimal maintenance.

For riders seeking a high-performance electronic groupset that balances elite-level performance with exceptional value, the Shimano Ultegra R8170 Di2 Disc Groupset delivers technology, design, and ride quality that exceeds expectations.

What is included:
1x SHIMANO shift | brake lever Ultegra Di2 ST-R8170 2x12-speed + disc brake BR-R8170 Flat Mount front
1x SHIMANO shift | brake lever Ultegra Di2 ST-R8170 2x12-speed + disc brake BR-R8170 Flat Mount rear
2x SHIMANO brake rotor Ultegra Center Lock RT-MT800 | 140mm/160 mm
1x SHIMANO crank Ultegra FC-R8100 
1x SHIMANO front derailleur Ultegra Di2 FD-R8150 | 2x12-speed
1x SHIMANO rear derailleur Ultegra Di2 RD-R8150 | 2x12-speed
1x SHIMANO cassette Ultegra CS-R8100 | 12-speed 11-34 teeth
1x SHIMANO chain Deore XT | Ultegra CN-M8100 12-speed | 126 links with chain lock
1x SHIMANO BT-DN300 internal battery
1x SHIMANO E-Tube cable for Di2 EW-SD300-I | 900 mm
1x SHIMANO E-Tube cable for Di2 EW-SD300-I | 1400 mm
1x SHIMANO charging cable EW-EC300