What is the top speed of the different motors? 31 January 2019 22:35 Updated Follow Narrow motor: 15.5 MPH Standard motor: 20 MPH (US) or 15.5 MPH 350W motor: 20 MPH 500W motor: 30 MPH Related articles What is the difference between the US and EU speed options? How much range will I get / how far can I ride? What is the difference between the standard and high power kit? What weight can it take? What width are the RIM's?