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
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Model: SM-EW90-B
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Type: External type
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Position: Under stem
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E-tube port (pcs): 5
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E-tube connector (pcs): 0
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Master unit: No
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Connector for remote sprinter shifter (QTY): 0
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Port for remote sprinter shifter (QTY): 0
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Charging port (QTY): 1
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Compatible system: E-Tube
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Compatible electric wire: EW-SD50
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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
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.
Weights are based off pre-production products at time of publication. Weights may vary in final production.
