I don't know if these things are motorcycles or not but they should be be required to have a license plate and insurance just like motorcycles do, these a gasoline powered vehicles!!! If mopeds and scooters are allowed on streets and highways without any registration or insurance then why not ATV's, they are gasoline powered vehicles too. If the riders want to get on city streets and hold up traffic, then put a tag and insurance on the darn things.