What is the difference between Class 1, 2, and 3 eBikes?

Class 1 eBikes provide pedal-assist only up to 20 mph and are allowed on most bike paths and trails. Class 2 eBikes add a throttle that works without pedaling, also capped at 20 mph. Class 3 eBikes provide pedal-assist up to 28 mph but are typically restricted to roads and bike lanes, not multi-use trails. Class 3 bikes also require riders to be at least 16 in most states.