A tire, also known as a tyre in Commonwealth English, is a ring-shaped component that surrounds a wheel's rim to transfer a vehicle's load from the axle through the wheel to the ground and to provide traction on the surface over which the wheel travels. Most tires are pneumatically inflated structures, which provide a flexible cushion that absorbs shock as the tire rolls over rough features on the surface. Tires are typically made of synthetic rubber, natural rubber, fabric, and wire, along with other chemical compounds. They consist of a tread, which provides traction, and a body, which provides containment for a quantity of compressed air
. In addition to this, the term "tire" can also refer to the act of becoming weary or to decrease greatly or completely the physical strength of something or someone
