Description

Shimano Di2 Frame Junction Box

Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount
All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions
Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/

Additional information

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Options#EW-JC200 Junction (2 port) E-Tube Wire Connector, EW-JC302 Di2 Junction Box – 2 Ports. Use With EW-SD300, EW-JC304 Di2 Junction Box – 4 Ports. Use With EW-SD300, EW-RS910 Di2 Drop Handlebar/Internal Frame Junction Box – 2-Port with Charging, SM-JC40 Di2 External Frame Junction Box 4-Port, SM-JC41 Di2 Internal Frame Junction Box 4-Port, STEPS Di2 EW-EX010 Adapter for Bosch Ebike Drive Unit