For internal DI2 wire routing, Shimano's SM-JC41 Junction B is the central connector for DI2 systems. Wires from the front and rear derailleurs, cockpit area, and battery all plug into the 4-port SM-JC41 junction, which is housed inside the bike frame.SM-JC41 E-tube cable junction for internal wire routingJunction is required for connection of rear mech, front mech, battery, and cable to battery indicator junction boxTo be positioned neatly inside frame tubing when connectedCables sold separatelyReliable and secure water resistant connectors
Shimano STEPS EW-EN100 E-Bike Junction-A KitFor a simple, clean cockpit, the EN100 E-Tube connection provides a minimal display and wireless communication to 3rd party displays and smartphone applications.Assist Mode (w/o Cycle Computer): HIGH, NORM, ECO, OFF, WALK.Expanded Communication by Wireless Connectivity: Minimal display option for a simpler cockpit, Wireless connection with 3rd party displays and smartphone applications, Support for clean cockpit area, D-FLY.Features:Use: E-bikeE-Tube Ports: 2E-Tube Connector: 0Wireless Compatibility: Bluetooth, ANTWeight: 5.7gTechnologies:D-FLY: D-FLY is a wireless data transmitter that easily connects DI2 and SHIMANO STEPS rider performance data with E-TUBE compatible cycle computers. Advanced wireless communication supports a more streamlined and seamless cycling lifestyle. Easier and more convenient wireless connectivity enhances communication between riders and their bikes.E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualization of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.A 2-year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
For a simple, clean cockpit, the EN100 E-Tube connection provides a minimal display and wireless communication to 3rd party displays and smartphone applications. Assist mode (w/o cycle computer): HIGH, NORM, ECO, OFF, WALK Expanded communication by wireless connectivity: Minimal display option for a simpler cockpit, Wireless connection with 3rd party displays and smartphone applications, Support for clean cockpit area, D-FLY Technologies: D-FLY: D-FLY is a wireless data transmitter that easily connects DI2 and SHIMANO STEPS rider performance data with E-TUBE compatible cycle computers. Advanced wireless communication supports a more streamlined and seamless cycling lifestyle. Easier and more convenient wireless connectivity enhances communication between riders and their bikes. E-Tube: The E-TUBE platform's “Plug & play” and D-FLY wireless connections make it easier than ever to check the system's status, and apply customized settings to DI2 and SHIMANO STEPS components with a PC, tablet or smart phone. Wirelessly customize functions like SHIMANO SYNCHRONIZED SHIFT over Bluetooth® while out on a ride. Automatically checks for firmware updates on each startup to ensure all components are running the latest version. PC, smartphone and tablet applications can help you quickly diagnose errors and simplify the repair process. Beautiful visualization of your real-time SHIMANO STEPS riding data on your smartphone. Advanced all-weather design resists rusting, stretching, and freezing.