An e-bike, short for "electric bicycle," is a type of bicycle that includes an integrated electric motor to assist with propulsion. E-bikes are designed to be pedaled like traditional bicycles but offer varying levels of electric assistance, depending on the model and rider's preference.
According to USA ELECTRIC BIKE REGULATION GUIDE，E-bikes can be divided into three levels—class 1，class 2 and class 3. They are specific classifications for e-bikes in the United States, and each class has distinct characteristics and regulations. Click and learn about e-bike definitions & classifications by state in United States.
E-bike Classes：
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Class 1 E-Bike (Pedal-Assist Only):
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Class 1 e-bikes are equipped with a motor that provides assistance only when the rider is pedaling. The motor assistance stops when the bike reaches a speed of 20 miles per hour (32 kilometers per hour).
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They do not have a throttle, so the rider must actively pedal to engage the motor.
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Class 1 e-bikes are often allowed on bike lanes and paths where traditional bicycles are permitted.
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They are typically considered bicycles, so no special license or insurance is required.
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Class 2 E-Bike (Throttle-Assist):
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Class 2 e-bikes have a throttle, similar to a scooter or motorcycle, that allows the rider to control the motor without pedaling.
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They are limited to a maximum speed of 20 miles per hour (32 kilometers per hour) when using the throttle.
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Class 2 e-bikes are also allowed on bike lanes and paths in many areas.
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Like Class 1 e-bikes, they are typically treated as bicycles in terms of licensing and insurance requirements.
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Class 3 E-Bike (Speed Pedelec):
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Class 3 e-bikes are equipped with a motor that provides assistance when the rider is pedaling, similar to Class 1 e-bikes.
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However, Class 3 e-bikes have a higher maximum assisted speed of 28 miles per hour (45 kilometers per hour).
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They do not have a throttle, so the rider must pedal to engage the motor.
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Class 3 e-bikes may be subject to additional regulations and are sometimes not allowed on certain bike paths or lanes.
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HMP INNO-A Serie and Liva e-bikes supported by 600W machine motor are classified as class 2 e-bike. Started an INNO serie or Liva e-bike requires throttle assistance and without pedaling to control the motor. Besides hmp's e-bikes are equipped with pedals, giving you more options. INNO-A Serie e-bikes Maximum Speed are limited under 20MPH（miles per hour），which are allowed on bike lanes and paths in many areas：
INNO-A 2024 lithium battery version maximum range up to 50 miles
INNO-A 2024 lead-acid battery version maximum range up to 45 miles
It's important to note that these classifications and regulations can vary by state and locality in the United States. Riders and manufacturers should be aware of local e-bike laws and regulations to ensure compliance.
Additionally, e-bike classifications may differ in other countries, so it's essential to understand the specific regulations in your region if you plan to use or manufacture e-bikes.