The Shimano Di2 SM-JC41 internal junction box is the Grand Central Station of the e-tube Di2 system. All of the component and battery wires meet here before running out to their respective components. All of the wires that connect to the junction box use the same connector to make assembly that much easier.
- SM-JC41 cable junction for internal wire routing.
- Junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box.
- To be positioned neatly inside frame tubing when connected.
- Cables sold separately.
- Reliable and secure water resistant connectors.
- This junction box is only made to be mounted internally on frames specially designed for an internally routed system.
In Store Pick Up
In Store Pick Up allows you to pay online for any product we have in stock and have that product shipped FREE of charge to our store in Squamish, BC.(Corsa Cycles) or our Vancouver location on Broadway West (Dunbar Cycles). The process takes about 2 days depending what location the item is coming from. As soon as your order is ready for pick up we will send you an email notification.
FAST & FREE Shipping Over $150
We get it. You ordered it. Its cool MTB gear and you want it right away. Totally understandable. That's why we offer FAST & FREE SHIPPING on all orders over $150 (except COMPLETE BIKES) anywhere in Canada.
Standard Shipping (rates are in CAD) - Canada Post Ground 3-5 Days.
USA Shipping - Canada Post or UPS Ground 5-7 Days.
International Shipping - Canada Post or UPS Ground 7-14 Days.
Dunbar Cycles will accept returns for store credit and exchanges within 30 days after the order has been placed as long as the return has not been used and is in the same condition it was in when shipped out. All sale items and release products are a FINAL SALE, and are not eligible for cancellation, return or exchange. Buyers will be responsible for paying return shipping costs unless we are at fault.