The last measurement that I made was the space in between the deck along with the handlebars. This was used to recognize the maximum rider top that each scooter may be comfortability ridden at (i.e. if it’s way too quick, you’re forced to crouch over and possess fewer control). https://www.electricscooter.ltd/electric-scooter-foldable-lightweight-smart-e-scooter-electric-motorcycle/