Shimano EW-SD300 – E-TUBE Di2 Electric Wire
The Shimano EW-SD300 is an electric wire designed for compatible Shimano Di2 electronic shifting and E-TUBE systems. Featuring compact SD300 connectors, it provides an electrical connection between compatible electronic bicycle components.
Its slim 2.4 mm cable design supports a clean installation, while the range of available lengths allows cyclists and mechanics to select the appropriate wire for their bicycle configuration.
Key Features
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Shimano SD300 connection: Designed for electronic components equipped with compatible SD300 ports.
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Compact connectors: Smaller connector design compared with the previous-generation SD50 system.
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Slim 2.4 mm cable: Helps provide a neat and discreet installation.
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Multiple lengths available: Select the appropriate length for the required component connection.
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E-TUBE compatibility: Supports compatible Shimano electronic shifting and E-TUBE systems.
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Genuine Shimano component: Designed to meet Shimano's electrical connection specifications.
Technical Specifications
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Brand: Shimano
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Model: EW-SD300
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Product type: Electric bicycle component wire
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System: Shimano E-TUBE / compatible Di2 systems
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Connectors: 2 x SD300
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Cable diameter: 2.4 mm
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Connector diameter: 3.45 mm
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Manufacturer length range: 150–1,600 mm
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Routing type: External
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Colour: Black
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Compatible Shimano connection tool: TL-EW300
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Available length: According to the selected variant
Compact E-TUBE Connectivity
The EW-SD300 uses Shimano's compact SD300 connector standard to link compatible electronic components. Its smaller cable and connector dimensions help simplify wiring layouts.
Designed for Compatible Di2 Systems
This electric wire is intended for Shimano systems using SD300 connections. Compatibility depends on the specific derailleur, battery, shifter or other electronic component.
Important Compatibility Information
The EW-SD300 and older EW-SD50 wires use different connector standards and are not directly interchangeable.
Some mixed configurations may require the Shimano EW-AD305 conversion adapter. Verify the official Shimano compatibility information before selecting a cable.
Choosing the Correct Length
Measure the required cable routing distance and allow sufficient length for the intended installation. Select the appropriate variant based on the bicycle's configuration.
