Ebikes are classified into three classes. Class 1 ebikes have only pedals and do not contain a throttle. The speed limit is 20 mph. Class 2 ebikes have throttle and their speed is more than 20 mph. E Bikes in Class 3 have pedal assist instead of the throttle and their speed is more than 28 miles per hour. All of these ebikes are compatible with up to 750 watts of the motor.