Something unique about a tire is the fact that it is the only component on the vehicle which is not attached to the vehicle by bolts and nuts, screws or welding.

A tire remains attached to the vehicle ONLY due to the snug fit of the bead on the rim and the inflation pressure inside the tire, forcing the bead firmly against the bevel contour of the rim and rim flange. If the tire loses its inflation pressure it will NOT remain attached to the vehicle.