Inertial scooters

Trike

— a kind of three-wheeled scooter with a peculiar design: trikes have two decks, under each leg. Each deck is equipped with its own rear wheel, and the front wheel (or pair of wheels) is shared. When riding a trike, you do not need to push off with your feet from the ground, but the specific method of movement may be different. So, in some models, you need to swing from side to side, in others — to shift and push apart the deck (to make "scissors").