This likely reminds you of an electric bike, so you might be confused as to why are electric bikes legal although not scooters? Properly, electric scooters can reach higher speeds of nearly 30km/hour, though the battery needs being recharged right after a certain distance (between ten and forty miles). https://israelqzfkr.dm-blog.com/30068751/the-5-second-trick-for-electric-scooter-for-adults-260-lbs-person