scooters

A kick scooter (also referred to as a push-scooter or scooter) is a human-powered street vehicle with a handlebar, deck, and wheels propelled by a rider pushing off the ground with their leg. Today the most common scooters are made of aluminum, titanium, and steel. Some kick scooters made for younger children have 3 to 4 wheels (but most common ones have 2 wheels) and are made of plastic and do not fold. High-performance kickbikes are also made. A company that had once made the Razor Scooters revitalized the design in the mid-nineties and early two-thousands. Three-wheel models where the frame forks into two decks are known as Y scooters or trikkes.
Motorized scooters, historically powered by internal combustion engines, and more recently electric motors, are self-propelled kick scooters capable of speeds sometimes exceeding 30 km/h (19 mph).

View More On Wikipedia.org