What are 'crystallized wheels' and how to identify them?

Tires are the only point of contact between the vehicle and the road, making their proper condition essential for driving safety.

However, a common and little-known problem plagues many drivers: glazed tires. This phenomenon, if left unnoticed, can have serious consequences.

Crystallized tires are tires that have lost their natural elasticity, becoming hard and brittle. This process directly affects road grip and, therefore, driving safety.

Euromaster mechanics identify three main factors contributing to this deterioration:

Prolonged exposure to the sun: Ultraviolet radiation can alter the chemical compounds in rubber, weakening its structure.

Extreme weather conditions: Both intense heat and extreme cold cause rubber to lose elasticity over time.

Improper storage: Storing tires in hot, humid, or directly exposed to light accelerates the crystallization process. For proper storage, a cool, dry, and dark location is recommended.

Recognizing crystallized tires early is key. Euromaster recommends drivers be alert for the following symptoms:

Visible cracks: Small fissures on the surface of the tire are a clear sign of deterioration.

Loss of elasticity: If the rubber feels harder than usual and doesn't spring back easily, it's time to have it checked.

Unusual rolling noises: Unusual sounds, such as whirring or scraping, may indicate that your tires are in poor condition.

Ignoring these signs poses serious risks to road safety. The reduced grip of a crystallized tire lengthens braking distance, increasing the likelihood of an accident. Furthermore, cracks and hardening of the tire increase the risk of a blowout at high speed, while a lack of elasticity directly affects vehicle stability, especially when cornering or during sudden maneuvers.

If you experience any of these symptoms, it is recommended that you visit a professional workshop for a detailed inspection.