How fast can someone make a electric skateboard and sell it legally?

An electric Skateboard is a Skateboard that is equipped with a battery and motor that provides the rider with additional power for propulsion. The speed at which someone can make and sell an electric Skateboard legally can vary depending on the regulations and guidelines set by the specific country or region. It is important to consult local laws and regulations to ensure that the electric Skateboard complies with any speed restrictions or safety requirements. Additionally, the performance of an electric Skateboard can vary depending on factors such as motor power, battery capacity, and overall design.