Eu regulates this by classification. A two-wheel vehicle with an electric motor that can assist up to 25 km/h is classified as an electric bike. If the two-whee

Eu regulates this by classification. A two-wheel vehicle with an electric motor that can assist up to 25 km/h is classified as an electric bike. If the two-wheel vehicle can reach up to 45 km/h, or if it don't require the rider to peddle, then its an electric moped. If it exceeds 45 km/h then its an electric motorcycle. The classification in turn determines which laws the seller and driver is under. A bicycle doesn't require a driving license or license plate. Mopeds and motorcycles require a license plate (registered) and have corresponding driving licenses. There might also be different taxes involved. There is a similar classification with four wheel vehicles. There is electric four wheel mopeds, tractors and cars, each defined by the maximum speed. You can even convert a car into a moped or tractor by changing the gear box to limit how fast they can go.