The vehicle has a single steered front wheel mounted on a main frame and two rear wheels mounted on a left and right frames. The left and right frames are connected to the main frame pivotally, which permits the vehicle to be folded into a compact position. The folded vehicle can stand upright and can be moved to a storage place on two rear and two caster wheels. For carrying inside a car the cycle also can be disassembled to four parts. The seat has a two-point spring suspension with the axis higher than the center of gravity of the seated driver. It allows the seat with the driver to stay in a vertical position while driving on a lateral slope or to lean right and left as the vehicle is making a turn. The vehicle has a leg-operated back pedaling brake mechanism and a car--style steering mechanism with a high-ratio cable reducer.
