Abstract: The vehicle has a chassis formed of a front strut and a seat strut which are attached together so as to be angularly adjustable about a horizontal axis. The seat strut telescopically carries a seat post with a seat thereon. The front strut telescopically carries a front post. Angularly adjustably mounted on the top of the front post is the steering head which rotatably carries the front fork. A wheel is mounted on the lower end of the front fork. A power strut is also mounted on the chassis axis. A telescopically mounted post extends from the power strut and rotatably carries a rear wheel thereon. In this way, complete adjustability is achieved. Pedals are mounted on the chassis axis and are connected to drive the rear wheel. A motor may be additionally or alternatively installed. In addition, different kinds of wheels and different numbers of wheels as well as skis and the like can alternatively be installed.