Junction-A, SM-EW90-A Dura Ace Di2, for Standard Handle Spec (E-Tube 3 Port, Charging Port)

Elevate your cycling experience with the Junction-A, SM-EW90-A Dura Ace Di2, an essential component for the Shimano Di2 electronic shifting system. Designed for standard handlebars, this compact junction box is a key element in achieving seamless, efficient gear shifting performance. Product Features: Seamless Integration: Perfectly compatible with Shimano Dura Ace Di2 electronic shifting systems, ensuring smooth, fast, and precise gear changes. Three E-Tube Ports: Provides connections for up to three E-Tube wires, allowing for integration with shifters and other Di2 components. Convenient Charging Port: Includes an easily accessible charging port, making it simple to keep your Di2 system powered without the need to dismantle your bike. Compact and Aerodynamic Design: Its sleek profile is designed to blend seamlessly with your handlebars, minimizing aerodynamic drag. Easy Installation and Maintenance: Simplifies the setup process and facilitates quick diagnostics and firmware upd