Trikking is riding a scooter that is 3 wheeled and propelled by shifting body weight from left to right creating an s-curve simalur to snow skiing. They come in many different sizes so there is usually one right for everybody. They are more stable to ride, so the are safer. they fold up for easy travel and storage. And the workout one gets from riding it is an added benifit becuse once I tried mine I was hooked, Oh is also comes with rear breaks controlled at the handelbars. The scooter by the way is known as a Trikke.