It's for legal reasons in a lot of places. Most places have laws about the max speed of motor powered devices. It's normally around twenty. I've gone up to 24

It's for legal reasons in a lot of places. Most places have laws about the max speed of motor powered devices. It's normally around twenty. I've gone up to 24 MPH (on flat) when I had one, and have hit the ground going twenty. I'm honestly not sure more speed is a good idea as it just takes one little crack in the road you weren't anticipating to throw you balance off.