Tyre for commercial vehicle wheels

A tyre for vehicle wheels comprising a tread band, wherein the tread band comprises:

• a first shoulder region and a second shoulder region axially opposite each other;
• a central region interposed between the first region and the second shoulder region;
• a plurality of pairs of first blocks and second blocks, arranged in regular succession along a circumferential development of the central region, wherein each first block and each second block of each of the pairs is at least partially aligned with each other along an axial direction defined on the tread band,
• a plurality of first pairs of main grooves, arranged in regular succession along the circumferential development of the tread band to partially delimit the first and the second blocks, wherein each first pair of main grooves are formed by a first main groove extending from the first shoulder region towards the central region and by a second main groove extending from the second shoulder region towards the central region,
• a plurality of second pairs of main grooves, arranged in regular succession along the circumferential development of the tread band in an alternating position with the first pairs of main grooves, wherein each second pair of main grooves are formed by a third main groove extending from the first shoulder region towards the central region and by a fourth main groove extending from the second shoulder region towards the central region,
• wherein in each first pair of main grooves, the second main groove comprises an axially internal end connected with the first main groove;
• wherein in each first pair of main grooves, the first main groove comprises an terminal segment, axially internal, connected with a second main groove circumferentially subsequent to the second main groove, to axially separate a first block and a second block of one of the pairs of first and second blocks;
• and
• wherein in each second pair of main grooves, the third and the fourth main groove comprise respective axially internal ends, and the axially internal ends are extended by respective first sipes and connected to the terminal segment of the first main groove to circumferentially separate the first and the second block into respective first and second portions of block, and in which a plurality of first pairs of secondary grooves are formed on the tread band, arranged in regular succession along the circumferential development of the tread band to at least partially delimit the first and the second blocks from their axially outer side, and each first pair of secondary grooves comprising a first secondary groove extending from a first main groove and a second secondary groove extended from a second main groove.