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Shimano Junction Box

Bikes are meant
to be used.

Looking for a reliable and efficient solution to manage your Shimano Di2 electronic shifting system? Look no further than the Shimano junction box. These junction boxes are essential components that allow seamless communication between various parts of your Di2 system, ensuring smooth and precise shifting every time. With options for internal or external wire routing and different port configurations, you can find the perfect junction box to suit your specific needs. Designed with durability and performance in mind, these junction boxes are built to withstand the demands of any ride, whether you're tackling steep climbs or sprinting to the finish line.


Internal Junction Boxes


Internal junction boxes are designed to be neatly integrated into your bike's frame, providing a clean and streamlined appearance. These junction boxes are typically installed inside the frame, keeping the wires hidden and protected from the elements. With multiple port options, you can easily connect all the necessary components of your Di2 system, including shifters, derailleurs, and battery. The internal junction boxes offer a secure and reliable connection, ensuring optimal performance and minimal maintenance.

External Junction Boxes


If you prefer a more accessible and user-friendly setup, external junction boxes are the way to go. These junction boxes are mounted externally on your bike's frame, making it easier to access and troubleshoot if needed. With different port configurations, you can connect all the necessary components of your Di2 system with ease. The external junction boxes are designed to withstand the elements and provide a reliable connection, ensuring smooth shifting even in challenging conditions.

System Information Display


Enhance your Di2 experience with a system information display. This display unit provides real-time information about your Di2 system, including gear position, battery level, and shift mode. With a clear and easy-to-read interface, you can stay informed and make adjustments on the go. The system information display is compatible with various junction boxes and can be easily integrated into your existing Di2 setup. Stay in control and optimize your ride with the Shimano system information display.