Mississippi

Motorcycle:

“every motor vehicle having a saddle for the use of the rider and designed to travel on not more than three (3) wheels in contact with the ground but excluding a tractor. The term “motorcycle” includes motor scooters as defined in paragraph (j) of this subsection.”

Motor Scooter:

“a two-wheeled vehicle that has a seat for the operator, one (1) wheel that is ten (10) inches or more in diameter, a step-through chassis, a motor with a rating of two and seven-tenths (2.7) brake horsepower or less if the motor is an internal combustion engine, an engine of 50cc or less and otherwise meets all safety requirements of motorcycles.”