The Shimano SM-EW90-B E-TUBE Di2 Junction-A is a five-port hub designed for cockpit-area wiring in electronic groupset systems.
This compact junction consolidates multiple Di2 cables, reducing clutter and simplifying cable management on your handlebars and stem. Compatible with Shimano's E-TUBE ecosystem, it enables flexible routing of shifters, front and rear derailleurs, and auxiliary components. Ideal for custom builds or systems requiring multiple connection points in tight spaces.
Specification
-
Model: SM-EW90-B
-
Type: External type
-
Position: Under stem
-
E-tube port (pcs): 5
-
E-tube connector (pcs): 0
-
Master unit: No
-
Connector for remote sprinter shifter (QTY): 0
-
Port for remote sprinter shifter (QTY): 0
-
Charging port (QTY): 1
-
Compatible system: E-Tube
-
Compatible electric wire: EW-SD50
-
Wire routing: internal/external
Compatibility
- Dura Ace Di2 9070
- Dura Ace Di2 R9150
- Ultegra Di2 R8050
- Ultegra Di2 6770
- Ultegra Di2 6870
Contents
- 1 x Shimano Di2 SM-EW90-B Junction 5 Ports
- 1 x Mounting material
