In the U.S., most states use a three-class system. Class 1 is pedal-assist only, cutting off at 20 mph—widely allowed on bike paths and trails. Class 2 adds a throttle (still 20 mph max) for easy starts or rests, but some areas restrict it. Class 3 is pedal-assist up to 28 mph, often limited to roads or specific paths and sometimes requiring helmets or minimum age (commonly 16+). Federal baseline treats qualifying low-speed e-bikes (under 750 W motor, operable pedals) as bicycles rather than motor vehicles. Always check state and local rules before buying or riding, as access, helmet laws, and speed limits vary. Matching class to your routes avoids surprises.

Which class fits the places you ride most, and why?