Pneumatic tyre for a vehicle

The tire has treads rotating in a circumference direction and profile block series including a profile block and limited by a circumference groove. The block is provided with cuts extending in a tread transverse direction, where the cuts include a lower section (4b) and shallow edge sections (4a, 4c) that are opened in a block edge (11) in a circumferential groove. The edge sections are limited by wall portions (14a-14c) that include a waveform whose wave crest and/or trough extend in an axial direction and vanishing amplitude to diminish a cutting section in a deeper direction.