A retread, also known as "recap," is a manufacturing process designed to extend the useful lifespan of a worn tire. The word retread can also refer to a tire which has been taken through this process.

Retreading starts with a safety inspection of the tire. The old tread is then buffed away, & a new rubber tread is applied to the bare "casing" using specialized machinery.

Retreads are significantly cheaper than new tires. As a result, they are widely used in large-scale operations such as trucking, bussing & commercial aviation.