Shimano SM-JC41 Junction Box For Di2 - Internal

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 ship across India. Shipping is free on orders above ₹2,000, and ₹99 is charged on orders below ₹2,000. Cash on Delivery is available for orders up to ₹20,000, with additional COD charges based on order value. Most orders are delivered within 3–6 working days, though delays may occasionally occur. Please note that most Shimano products may take longer to ship. View full shipping policy.

Returns can be initiated within 7 days of delivery. Items must be unused, in original condition, and returned with all tags and packaging intact. Returns are available only on select categories such as apparel, helmets, jerseys, gloves, and similar items. Wetsuits and products discounted above 5% are not eligible for return.

Returns are not accepted for compatibility-related issues unless the product description on our website was incorrect. Return shipping must be arranged by the customer, as pickup is not available.

For eligible returns, you can choose an exchange, store credit, or a monetary refund. Refunds are processed after deduction of applicable shipping and transaction charges. Order cancellations are only possible before the order is processed. View full Return & Refund Policy.