Two options available for internal and external wiring.
Product description
The junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box with reliable and secure water resistant connectors. Cables sold separately.
For use with the NEW Dura Ace 9070 and Ultegra 6770 Di2 systems
SM-JC40 cable junction for external wire routing. To be mounted on bottom bracket cable guide threa
SM-JC41 cable junction for internal wire routing. To be positioned neatly inside frame tubing when