EBMX X-9000 Race Harness for QS138 Motor Conversions
Unlock the full potential of your electric conversion build. The EBMX X-9000 Race Harness is the essential component for connecting your X-9000 Controller to the high-performance QS138 70H or 90H motor. Designed for custom builders and high-power electric motorcycle projects, this plug-and-play wiring solution eliminates the guesswork of custom loom fabrication.
Why Use the EBMX Race Harness for Your QS138 Build?
Building a custom electric dirt bike or supermoto? The EBMX harness streamlines your setup, ensuring reliable communication between your controller and motor. By utilizing high-quality, automotive-grade connectors, this harness minimizes signal interference and voltage drop—critical factors when pushing high current through a QS138 powertrain.
Key Features
Precision Engineering: Specifically pinned for the QS138 motor and X-9000 controller interface, ensuring perfect compatibility and hassle-free installation.
Built for High Performance: Designed to withstand the intense vibration and heat associated with custom MX and supermoto builds.
Simplified Integration: Pre-terminated connectors significantly reduce build time, allowing you to focus on frame fabrication and mounting rather than wire splicing.
Robust Signal Integrity: High-quality wiring loom materials ensure that your Hall sensor signals and throttle inputs remain clean and responsive.
Versatile Fitment: Optimized for standard controller positioning on custom frames, providing the ideal length for most full-size electric motorcycle conversions.
Technical Specifications
Motor Compatibility: QS138 70H and 90H mid-drive motors.
Controller Compatibility: Designed for EBMX X-9000 (V2/V3) controllers.
Connector Type: Factory-spec waterproof connectors for high-output electric motor systems.
Application: Ideal for custom electric motorcycle builds (e.g., YZF450, RMZ, custom tubular frames).



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