Abstract: An internal conduit vehicle, also called a pipeline vehicle. The vehicle includes first and second wheel assemblies that are rotated in opposite directions to move the vehicle along the pipeline, or that are mutually independent to perform a more complex movement. Each wheel assembly includes a number of wheels at the free end of wheel arms, each wheel having a spin axis that is angled in respect of an axis of the chassis. Each wheel is shaped as a rotation symmetric body with a large end and a small end, and is unilaterally mounted to a wheel arm by the large end.