How do storage conditions and elapsed time affect unused tyres, and how should mounted and unmounted tyres be stored?

Automatically reviewed answer

Hello, unused tyres still age: good storage slows deterioration but does not stop it. Oxygen gradually changes the rubber, and higher temperatures accelerate this process. Clean the tyres and let them dry completely, then store them indoors somewhere cool, dry and protected from sunlight, heat, oils, solvents and ozone-producing equipment such as electric motors with brushes. For tyres removed from the vehicle: - Without rims: store upright and turn them every few months. Never hang them, because this can distort or damage them. - Mounted on rims: store flat, stacked securely, or suspended using suitable wheel-storage equipment. Before putting stored tyres back into use, have a tyre professional inspect them and check their inflation pressure. Check the manufacturing date too, and follow the tyre manufacturer’s age-related replacement guidance; good storage does not give tyres an unlimited life.