How to Remove the Speed Limit on Qingfeng X?
2 Answers
In most cases, when the car is stationary, pressing this button sets the default speed limit to 30km/h. The pressed speed becomes the speed limit point. Press the LIM button, then press the SET button to activate the speed limit adjustment. Use the 'RES/+' button to increase the speed limit or the 'SET/-' button to decrease it. When the speed limit function is activated, as long as the throttle depth does not exceed 95%, the speed will generally not exceed the set limit.
I tried removing the speed limit on my Qingfeng X electric scooter mainly to save time during my commute. The method I found from online forum tutorials involved opening the controller cover and adjusting the internal potentiometer settings to increase the RPM. To be honest, it wasn't easy to operate - I had to first use a multimeter to test the current values and carefully rotate the potentiometer after determining the safe range. After modification, it did become faster, but I noticed the vehicle's stability deteriorated, especially feeling somewhat unstable when turning. Later, I checked relevant regulations and learned that in China, electric vehicles exceeding 25 km/h are considered illegal operation, which may lead to fines or vehicle confiscation. For safety reasons, I reverted to factory settings and additionally inspected the braking system and tire wear. Actually, it's unnecessary to take the risk of unlocking - purchasing a legitimate high-speed model would be more worry-free, or regularly maintaining the motor to ensure natural performance delivery.
