Scope of legal modification
1. Appearance parts:
Bumpers, protective devices (such as bumpers, protective plates), etc. can be added, but they cannot exceed the width, length and height limits of the vehicle body.
Standard lights can be replaced to improve the lighting effect, but spotlights or colored lights cannot be added.
Standard trunks can be installed, but the height of the trunk cannot exceed 1.5 meters, the left and right dimensions cannot exceed 15 cm at the widest part of the vehicle, and the length cannot exceed 20 cm of the vehicle body length.
Rearview mirrors can be installed to improve driving safety.
2. Practical parts:
Legal seats can be replaced to improve comfort.
Standard anti-theft devices can be installed or replaced.
Illegal modification behavior
1. Power system:
Remove or change the speed limiter of the electric bicycle so that the maximum design speed exceeds 25 kilometers per hour.
Replace non-standard motors, batteries or controllers, such as replacing high-power motors or increasing battery capacity.
2. Appearance structure:
Adding devices such as canopies and parasols may affect the handling and stability of the vehicle.
Changing the frame structure of the vehicle or adding parts that exceed the specified size.
Other illegal behaviors:
Privately removing the anti-tampering design of the vehicle.
Using mismatched batteries or chargers may cause overheating or short circuits in the circuit.
Legal consequences
Administrative penalties: Owners of illegally modified electric bicycles may face fines of 50 to 300 yuan, and the vehicle may be detained and ordered to be restored to its original state.
Operator liability: Merchants engaged in illegal modification business activities will face fines of 3,000 to 30,000 yuan, and serious circumstances may revoke their business licenses.
Criminal liability: If illegal modification leads to accidents or serious consequences, criminal liability may be pursued in accordance with the law.
Safety risks
Illegal modification of electric bicycles is not only illegal, but may also bring serious safety hazards, such as spontaneous combustion, explosion, reduced braking performance, etc., which can easily cause traffic accidents.



