A tire is a ring-shaped covering that fits around a wheel to protect it and enable better vehicle performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground. The word itself is derived from the word "tie", referring to the outer steel ring part of a wooden cart wheel that ties the wood segments together.

The fundamental materials of modern tires are rubber and fabric along with other compound chemicals. Their constructive make-up consists of the tread and the body. The tread provides traction while the body ensures support. Before rubber was invented, the first versions of tires were simply bands of metal that fit around wooden wheels in order to prevent wear and tear.