The spelling tyre began to be commonly used in the 19th century for pneumatic tires in the UK. The Times newspaper in London was still using tire as late as 1905. Nevertheless, many publishers continued using tire. The spelling tyre did not reappear until the 1840s when the English began shrink-fitting railway car wheels with malleable iron. During the 17th and 18th centuries, tire became more common in print. Tyre is the oldest spelling, and both tyre and tire were used during the 15th and 16th centuries. The word tire is a short form of attire, from the idea that a wheel with a tire is a dressed wheel. Moreover, the regular use of tires produces micro-plastic particles that contain these chemicals that both enter the environment and affect human health. If not recycled properly or burned, waste tires release toxic chemicals into the environment.

There is a need for tire recycling through mechanical recycling and reuse, such as for crumb rubber and other tire-derived aggregate, and pyrolysis for chemical reuse, such as for tire-derived fuel. Because of the widespread use of tires for motor vehicles, tire waste is a substantial portion of global waste. The manufacture of tires is often highly regulated for this reason. Unmaintained tires can lead to severe hazards for vehicles and people, ranging from flat tires making the vehicle inoperable to blowouts, where tires explode during operation and possibly damage vehicles and injure people. Metal tires are used on locomotives and railcars, and solid rubber (or other polymers) tires are also used in various non-automotive applications, such as casters, carts, lawnmowers, and wheelbarrows. Pneumatic tires are used on many vehicles, including cars, bicycles, motorcycles, buses, trucks, heavy equipment, and aircraft. Early rubber tires were solid (not pneumatic). Before rubber was developed, tires were metal bands fitted around wooden wheels to hold the wheel together under load and to prevent wear and tear. The tread provides traction while the body provides containment for a quantity of compressed air. The materials of modern pneumatic tires are synthetic rubber, natural rubber, fabric, and wire, along with carbon black and other chemical compounds. Tires provide a footprint, called a contact patch, designed to match the vehicle's weight and the bearing on the surface that it rolls over by exerting a pressure that will avoid deforming the surface. Most tires, such as those for automobiles and bicycles, are pneumatically inflated structures, providing a flexible cushion that absorbs shock as the tire rolls over rough features on the surface. Tractor tires have substantial ribs and voids for traction in soft terrain.Ī tire ( North American English) or tyre ( 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. For the film, see Rubber Tires.Īssorted new automotive road tires, showing a variety of tread patterns.

Redline tires 18 inch