Pneumatic tyre having a tread strip comprising a plurality of tread ribs

摘要

A pneumatic tyre is described having a tread strip (1) which is built up from a plurality of tread ribs (4,5,6) which are separated in the axial direction by broad circumferential grooves (2,3). Outer rib groove (7,8) are present in at least one of the outer tread ribs (4,6), have a smaller width than the circumferential grooves (2,3) and communicate with one of the circumferential grooves (2,3) which bound the relevant outer tread rib (4,6).