Every one of swagtron's generalized calculations were inaccurate to the scooter I received and misleading and intended to deceive. They could not figure out how to make a commuting scooter and do that properly. The brakes are unsafe. The scooter hitches. The scooter is slow and gets slower as the battery loses energy. The scooter could not even make it 5 miles without having to be pushed to keep above 5mph. I was sent a scratched scooter and the parts were damaged. User's recommendation: Don't buy from frauds.