1. Product Overview
The Klanata DK72550T is a high-performance brushless DC motor controller designed for 72V 8000W electric motorcycles and mobility scooters. It features advanced sine wave technology for smooth and quiet operation, ensuring efficient power management and enhanced riding performance. This controller is built with durable materials to withstand high temperatures, providing stable and reliable long-term use. Its smart self-learning function simplifies installation and setup by automatically adapting to various motor settings.
Key Features:
- Guaranteed Fit: Specifically designed for QS Motor electric motorcycles and mobility scooters, replacing OE DK72550T. Ensure compatibility by verifying your motor model and voltage.
- Powerful 8000W Performance: Manages motor speed and power output effectively for improved acceleration and overall riding experience.
- Stable Sine Wave Technology: Utilizes advanced sine wave control for smooth, quiet operation, perfectly matching QS hub motors or QS mid-drive motors.
- Durable High-Temperature Construction: Manufactured with robust materials to endure high temperatures, ensuring stable performance and extended reliability.
- Smart Self-Learning Function: Automatically adapts to different motor settings, simplifying the installation and configuration process.
2. Package Contents
- 1 x Brushless DC Motor Controller (DK72550T)
- 1 x Terminal Cover
- 1 x Wiring Harness
- 5 x Screws
3. Installation Guide
Installation of the DK72550T controller requires careful attention to wiring and component placement. It is highly recommended that installation be performed by a professional mechanic to ensure proper function and safety.
3.1 General Controller View

3.2 Wiring Connections
Ensure all connections are secure and correctly matched according to the wiring diagram of your electric vehicle. The controller features clearly marked terminals for phase wires and other connections.


The controller is pre-set with parameters. There is no need to self-learn or change the settings after receiving the product. If necessary, please tune with the help of professionals or ask us for the video of parameter settings through Amazon.
3.3 Mounting the Controller
Securely mount the controller in a location that is protected from direct moisture and excessive heat, ensuring adequate airflow for cooling. Use the provided screws for mounting.


4. Operating Instructions
Once the controller is correctly installed and all connections are verified, the system is ready for operation. The smart self-learning function will adapt to your motor's characteristics, providing optimized performance.
- Power On: Turn on the main power switch of your electric vehicle.
- Throttle Control: Gently apply the throttle to initiate motor movement. The sine wave technology ensures a smooth and responsive acceleration.
- Monitoring: Observe the vehicle's performance. If any unusual behavior occurs, power off immediately and consult a professional.
5. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your DK72550T controller and electric vehicle system.
- Keep Clean: Periodically clean the exterior of the controller to prevent dust and debris buildup, which can affect cooling.
- Inspect Connections: Regularly check all wiring connections for tightness and signs of wear or corrosion. Loose connections can lead to intermittent operation or damage.
- Avoid Overheating: Ensure the controller is not exposed to environments that exceed its operating temperature limits. Proper ventilation is crucial.
- Professional Inspection: Consider having a professional mechanic inspect your electric vehicle's electrical system, including the controller, at least once a year.
6. Troubleshooting
This section provides general troubleshooting tips for common issues. For complex problems, professional assistance is recommended.
- No Power:
- Check battery connections and charge level.
- Verify the main power switch is ON.
- Inspect all wiring for loose connections or damage.
- Motor Not Responding:
- Ensure throttle is correctly connected and functioning.
- Check motor phase wire connections.
- Verify Hall sensor connections.
- Intermittent Operation:
- Inspect all wiring for loose or corroded connections.
- Check for signs of overheating on the controller.
If troubleshooting steps do not resolve the issue, contact Klanata customer support or a certified technician.
7. Specifications
| Feature | Detail |
|---|---|
| Item Type | Brushless DC Motor Controller |
| Material | Metal, ABS |
| Model | DK72550T |
| Voltage | 72V default (36-100V compatible) |
| Bus Current | 180A / 280A |
| Phase Current | 550A |
| Estimated Speed | Approx. 130 km/h (actual speed depends on vehicle weight and wind resistance) |
| Bluetooth (BT) | Built-in |
| Fitment | Fits for QS Motor Electric motorcycle and mobility scooter 8000W |
| Package Dimensions | 9.06 x 7.09 x 2.76 inches |
| Item Weight | 3.86 pounds |
| Manufacturer | Klanata |
8. Warranty and Support
For warranty information, technical support, or any inquiries regarding your Klanata DK72550T Brushless DC Motor Controller, please refer to the contact information provided by your retailer or visit the official Klanata store on Amazon.
Klanata Store: Visit the Klanata Store on Amazon