• En el Taller con NASCAR – Inner Liner tire (English)

    In 1966, Goodyear developed the tire-within-a-tire concept, named the Lifeguard Inner Liner Safety Spare, which is still used today. It creates a second envelope inside the main tire to prevent a full blowout, allowing the driver to return to pit road safely to change the flat. NASCAR rules require that all tires must have an inner liner on tracks that are over a mile long.