Colorado

Motorcycle:

“a motor vehicle that uses handlebars or any other device connected
to the front wheel to steer and that is designed to travel on not more than three wheels in contact with the ground; except that the term does not include a farm tractor, autocycle, low-speed electric vehicle, or low-power scooter.”

Low-Power Scooter:

_{(Source: https://leg.colorado.gov/sites/default/files/images/olls/crs2016-title-42.pdf)}

	Licensing	Minimum Age	Registration	Insurance	Helmet
Motorcycle	Motorcycle Endorsement	16	Required	Required	Required if under 18
Low-Power Scooter	Standard License	16	Required	Required	Required if under 18

_{(Sources: https://dmv.colorado.gov/faqs-registration#Low-Power%20Scooters;
https://drive.google.com/file/d/1U2AlZkkrQmGie4eiqPlcSjG1PCAk9Cr6/view;
https://drive.google.com/file/d/1r9ZJQ8QWzRFe1gvdfA9fGNrssAO-sCmb/view)}