Junction Box Shimano SM-JC41 Di2 Internal 4-Port

Junction Box Shimano SM-JC41 Di2 Internal 4-Port

The Shimano SM-JC41 is an internal Junction-B unit designed for Di2 electronic shifting systems, enabling reliable connection of components inside the bike frame. Its compact design helps maintain a clean and protected cable layout.

Featuring 4 E-Tube ports, it allows efficient distribution of power and signals between multiple Di2 components. The internal installation makes it ideal for modern bikes where clean aesthetics and tidy cable routing are essential.

Compatible with Shimano’s E-TUBE system, the SM-JC41 ensures stable and reliable connections, which are crucial for smooth and precise electronic shifting performance. It is an excellent solution for building or optimizing your Di2 setup.

• Model: SM-JC41
• Type: Internal (Built-in)
• E-Tube ports: 4
• Compatible wire: EW-SD50
• Installation: internal
• Compatibility: Dura-Ace, Ultegra, XTR, XT, Alfine Di2

The Shimano SM-JC41 provides a clean and discreet connection solution, ensuring optimal Di2 system performance.