Pneumatic tyre for a vehicle

The tire has a profile block (7a) and profile positive (7b) formed by diagonal grooves (5), which are displaced in one of running strip halves against other running strip halves in a circumferential direction. A shoulder block comprises shoulder block series (2) with an adjacent transverse groove (4) and the diagonal grooves and forms pitches, which are provided in two different circumferential lengths. The diagonal grooves run along a pitch limit such that the diagonal grooves associated to the pitches exhibit coincidence width and run under same large angle to a tire equator (A-A).