Shimano SM-JC41 Di2 Junction Box

<li>SM-JC41 cable junction for internal wire routing.</li><li>The junction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction box.</li><li>To be positioned neatly inside frame tubing when connected.</li><li>Cables sold separately.</li><li>Reliable and secure water resistant connectors.</li>