Explore Shimano's Di2 Junction Boxes for seamless integration in your bicycle's electronic system. The EW90-A 3-Port and EW90-B 5-Port Cockpit Junction Boxes ensure compatibility among Di2 components, preventing malfunctions. With LED battery indicators and rear derailleur adjustment mode, these boxes offer functionality. The RS910 Handlebar/Internal Frame Junction Box connects key components, while the JC200 and JC41 Junction Boxes facilitate E-tube wire connections at multiple points for a streamlined setup.
Ensure smooth operation by maintaining the same firmware version for all Di2 components on your bicycle. Mixing components with different firmware versions may lead to malfunctions. Stay consistent for optimal performance.