Shimano Wire Junction Ewsd50
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What Is It?
The Shimano EW-SD50 E-TUBE Electric Wire is a Di2 wiring cable that transmits both power and electronic shift signals between Shimano E-TUBE Di2 components. It is used to connect components such as shifters, derailleurs, junction boxes, batteries, wireless units, and displays within Shimano's SD50 E-TUBE system.
Featuring Shimano's "Plug & Gap" waterproof connector design, the EW-SD50 provides a secure, reliable connection for both internal and external cable routing. It is available in multiple lengths ranging from 150 mm to 1,600 mm, allowing you to select the correct cable for your specific bike build.
Key Benefits
- E-TUBE Di2 Connectivity: Transmits both power and digital communication between Shimano Di2 components.
- Waterproof Connectors: Compact, sealed connectors ensure reliable performance in all weather conditions.
- Plug & Gap Connection: Secure push-fit design makes installation and servicing straightforward.
- Internal or External Routing: Suitable for frames with either cable routing configuration.
- Multiple Length Options: Available in lengths from 150 mm to 1,600 mm to suit a wide variety of bike layouts.
- Compact Design: Slim cable and 5.1 mm connectors simplify routing through frames and handlebars.
- Genuine Shimano Component: Designed for maximum reliability and compatibility with Shimano SD50 E-TUBE systems.
Specifications
| Specification | Details |
|---|---|
| Product | Shimano EW-SD50 E-TUBE Electric Wire |
| System | Shimano E-TUBE Di2 (SD50) |
| Function | Power and data transmission |
| Routing | Internal or External |
| Cable Diameter | 2.8 mm |
| Connector Diameter | 5.1 mm |
| Connector Type | SD50 (2 connectors) |
| Available Lengths | 150 mm – 1,600 mm |
| Connection Type | Waterproof Plug & Gap |
| Colour | Black |
Compatible Components
The Shimano EW-SD50 is compatible with Shimano SD50 E-TUBE systems, including:
- Di2 shifters
- Front derailleurs
- Rear derailleurs
- Internal and external batteries
- Junction A and Junction B units
- Wireless units (e.g. D-Fly)
- Shimano STEPS e-bike systems using SD50 wiring
It is not compatible with Shimano's newer SD300 wiring system without using the EW-AD305 adapter.
Who Is This Best Suited For?
The Shimano EW-SD50 E-TUBE Electric Wire is ideal for:
- Road cyclists using Di2
- Gravel riders
- Mountain bikers with Di2
- Time trial and triathlon riders
- E-bike riders with Shimano STEPS
- Bike mechanics and custom bike builders
- Cyclists replacing damaged or worn Di2 wiring
- Riders upgrading or expanding an existing Shimano E-TUBE Di2 system
Compatibility Note: The EW-SD50 is designed exclusively for Shimano SD50 E-TUBE Di2 systems. It is not directly compatible with Shimano's SD300 components. If your system combines SD50 and SD300 components, an EW-AD305 adapter is required for proper integration.
