E-bike speed motor controller designed for reliable, long-lasting performance Key benefits Durable, waterproof housing: Aluminium alloy shell protects the controller from moisture and physical wear, extending service life and reducing maintenance. Cooler operation, safer electronics: Effective heat dissipation prevents thermal overload and protects internal circuitry for consistent performance under load. Built-in safety protections: Undervoltage protection, over-current protection, blocking protection and additional safety functions reduce risk of component damage and help keep riders safe. Easy, error-resistant wiring: Color-coded multi-wire harness separates functions. Only required wires need connection; unnecessary functions can be left disconnected without affecting operation, simplifying installation and troubleshooting. Features and practical details Material: Robust aluminium alloy shell for improved durability and water resistance. Cooling: Designed to dissipate heat to avoid thermal stress on internal components. Protection suite: Multiple protections (undervoltage, over-current, blocking, etc.) to guard the motor and battery system. Wiring: Multiple colored wires, each assigned to a specific function. Connect only the needed lines for a clean, reliable setup. Performance: Suitable for use as a speed motor controller in electric bicycles. Matches typical e-bike control needs where a color-coded harness and onboard protections are required. Typical use scenarios Daily commuting: Reliable temperature management and undervoltage protection help maintain consistent performance for everyday riders in variable weather. Cargo or heavy-load e-bikes: Over-current and blocking protections reduce risk of controller failure under higher torque or sustained loads. Replacement or retrofit: Straightforward color-coded wiring makes this controller a practical swap for damaged or underperforming controllers in many e-bike systems (verify wiring compatibility before installation). What to verify before purchase Confirm the controller’s wiring harness and connector types match your e-bike system. Ensure the controller’s protection features meet your operational and safety requirements. This controller provides a durable, well-cooled solution with essential safety protections and an easy-to-connect wiring harness for reliable e-bike operation.