Summer tires are suitable when the ambient temperature is above 7 ° C. They differ from winter tires certainly for the harder compound and for its more massive rubber blocks. Their lower groove compared to the winter one, but wider, allows the water to drain and avoid the so-called aquaplaning phenomenon. Summer tires offer maximum performance in the summer months on both dry and wet surfaces.
Winter tires have a special feature that make them suitable when the ambient temperature is below or equal to 7 ° C and on wet, snowy or icy road surfaces, ensuring better grip. These tires have the particularity of reaching operating temperature very quickly, thanks to the help of a softer rubber, rich in silica.The highway code obliges the installation of winter tires from November 15th to April 15th, but it can be extended in case of snowfall and ice formation on the roads.
All-season tires are a cross between summer and winter tires. They guarantee good grip on snowy or icy roads and are suitable for those who do not travel more than ten thousand kilometers per year. All-season tires are recognizable by the M + S symbol and can be used instead of winter and summer tires, with the difference that in the winter months they offer maximum performance and in the milder months they compromise.