The Shimano SM-JC41 Junction Box is a key component of your internally routed Di2 setup. Designed to be hidden within the bike frame, this junction keeps your electronic cabling organized and out of sight for a clean and professional look.
Central Connection Hub: This internal junction serves as the central point for all EW-SD50 cables connecting your Di2 system—linking the battery, derailleurs and shift levers. It ensures reliable communication between components, supporting seamless electronic shifting performance.
Discreet and Frame-Compatible: Generally positioned inside the seat tube or down tube via the bottom bracket shell, the SM-JC41 remains completely out of view. It’s engineered for use in compatible frames with internal routing and provides a secure, vibration-resistant cable junction.
Reliable, Lightweight Performance: Built with precision and trusted Shimano engineering, the SM-JC41 adds minimal weight while delivering essential functionality. Whether upgrading or building a Di2 bike from scratch, it’s an indispensable part of a clean, integrated electronic drivetrain.
The SM-JC41 is compatible with a wide range of Di2 series, including Dura-Ace 9070, Ultegra 6870/6770, XTR 9050, XT 8050 and Alfine/Nexus Di2 systems.
We are still adding a lot of products and If you can't find any product, just message us on our whatsapp no. here and we will get it arranged for you
You can also email us at support@madoverbiking.com or call us at 9315376395
The Shimano SM-JC41 Junction Box is a key component of your internally routed Di2 setup. Designed to be hidden within the bike frame, this junction keeps your electronic cabling organized and out of sight for a clean and professional look.
Central Connection Hub: This internal junction serves as the central point for all EW-SD50 cables connecting your Di2 system—linking the battery, derailleurs and shift levers. It ensures reliable communication between components, supporting seamless electronic shifting performance.
Discreet and Frame-Compatible: Generally positioned inside the seat tube or down tube via the bottom bracket shell, the SM-JC41 remains completely out of view. It’s engineered for use in compatible frames with internal routing and provides a secure, vibration-resistant cable junction.
Reliable, Lightweight Performance: Built with precision and trusted Shimano engineering, the SM-JC41 adds minimal weight while delivering essential functionality. Whether upgrading or building a Di2 bike from scratch, it’s an indispensable part of a clean, integrated electronic drivetrain.
The SM-JC41 is compatible with a wide range of Di2 series, including Dura-Ace 9070, Ultegra 6870/6770, XTR 9050, XT 8050 and Alfine/Nexus Di2 systems.