The EW‑SD50 is Shimano’s second‑generation waterproof E‑Tube cable used to link components in 10/11/12-speed Di2 electronic shifting systems. Featuring slim, weather-resistant connectors, it supports both internal and external routing, delivering reliable digital control signals and power throughout your Di2 setup.
Features
Waterproof snap‑in E‑Tube connectors at both ends
Suitable for internal or external routing
Smaller diameter than first-gen cables for easier frame impacts
Strong, reliable connection designed for cycling environments
Compatible with 10/11/12-speed Shimano Di2 systems
Interoperable with newer SD‑300 series via adapter
