The category of consumers who have traditionally used mechanical shifting systems can now experience the function and technology inherited from Dura-Ace and Ultegra. Shimano 105 Di2 is the culmination of years of research and development, where wireless shifting, tailored gearing, and an exceptional braking system, mark a new era in affordable performance.
Shimano introduced its electronic shifting system already 2009. According to the component manufacturer, “the latest version of Di2 features critical functional enhancements, including a wireless cockpit and the jump to 12-speed. Di2 comes with a completely redesigned Di2 system, an optimized 12-speed gearing, refined interface and ergonomics and an enhanced brake system.”
The new system is also backwards compatible, meaning you can use your existing 11-speed freehub-equipped wheels with the new Shimano 105 Di2 drivetrain.
Shimano 105 Di2 utilises a hybrid system, featuring a wireless cockpit paired with a wired connection between a single, seat-tube-stored battery and the front and rear derailleurs, ensuring reliability in all conditions. And just like with Dura-Ace and Ultegra the system is highly customisable using Shimano’s user-friendly e-tube project smartphone app. The system can even be paired with most third-party cycling computers, including Garmin and Wahoo, which allows to monitor gear selection or battery status.