Junction box for Di2 e-Tube wires
SM-EW90-A = 3 ports (To connect climbing and sprint shifters and standard road levers)
SM-EW90-B = 5 ports (For connecting road or triathlon levers, satellite shifters, and other time trial and triathlon shifters)
1 junction box required to complete the system
Choose the model that matches the cable routing used
SM-JC40 for external cable routing
SM-JC401 for internal cable routing
ADVANTAGE
Go farther with smooth, long-lasting e-bike performance
FUNCTIONALITY
Up to three times the durability of HYPERGLIDE under high chain-tension conditions
ADVANTAGE
Smooth bi-directional shifting (inboard and outboard) with reduced pedal shock
TECHNOLOGY
LINKGLIDE