The electric drive system on the ebike can be activated through a pedaling action to reach higher top speeds. In parts of Europe this class is also considered a motor vehicle and requires special licensing, the use of an identification plate at the rear of the bike may be required and use is limited to roads or private property only with a maximum speed ~28 mph (~45 kph). In America this class could still be considered a “low-speed electric bicycle” if human power propels the bike above 20 mph and as such, does not require special licensing but may be even more restricted to roads, adjacent bike lanes or on private property with a maximum speed ~28 mph (~45 kph) and motor wattage of <= 750 watts. In America this class is often combined with Class 2 which produces bikes that have a throttle element capable of powering the rider up to 20 mph (32 kph) on motor power only, as well as a pedal assist mechanism capable of powering the rider up to 28 mph (45 kph). In parts of Europe, where throttles are less common, most Class 3 electric bikes only offer pedal assist.