High-performance tyre

A car tyre having a tread band comprising a central region, extending across an equatorial plane (X-X) of the tyre, an outer shoulder region located towards an outer side of the tyre and an inner shoulder region located towards an inner side of the tyre;

• the tread band further comprising:
• a first circumferential groove axially delimiting the outer shoulder region relative to the central region and a second circumferential groove axially delimiting the inner shoulder region relative to the central region;
• the outer shoulder region having a width greater than a width of the inner shoulder region;
• and
• the outer shoulder region and the inner shoulder region comprise a plurality of first transverse grooves having a first end located substantially at the respective edge of the tread band, having a maximum width greater than, or equal to, 3 mm and an extension equal to at least 50% of the width of the shoulder region where the plurality of first transverse grooves are located;
• wherein
• the outer shoulder region comprises a plurality of second transverse grooves extending from the first circumferential groove;
• the second transverse grooves have a width smaller than the first transverse grooves and a counter-inclined course relative to the first transverse grooves;
• the central region comprising a first and a second circumferential rib separated by a third circumferential groove, and
• the first and second circumferential ribs having a void-to-rubber ratio equal to, or smaller than, 0.09.