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How to Remove the Speed Limit on Qingfeng X?

3 Answers

SanAubree

09/08/25 2:05am

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.

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OAyla

09/19/25 7:48am

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.

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MacAlaina

11/02/25 8:09am

I don't recommend anyone casually remove the speed limiter on the LightBee X. After all, this e-bike is designed for urban commuting, and its 25 km/h speed limit exists to protect riding safety. If you insist on forcibly unlocking it, common methods include software flashing or hardware modifications, but DIY attempts carry significant risks - like burning out the controller or causing short circuits that may lead to malfunctions or even fires. I've seen a friend lose control and crash after trying this, which simply wasn't worth it. If you find the speed insufficient, consider official upgrade kits or switching to a high-speed version. For daily use, always monitor battery health and tire pressure, avoid overloading or sudden acceleration to prolong the vehicle's lifespan and ensure safe riding. Following regulations is the wisest choice - don't sacrifice safety for temporary thrills.

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