PNEUMATIC TIRE Russian patent published in 2017 - IPC B60C11/04 B60C11/11 B60C11/117 

FIELD: transportation.

SUBSTANCE: on the tread surface there are a plurality of main grooves extending in the circumferential direction of the tread, and a plurality of stripes, bounded with the main grooves and tread edges, wherein the central strip rigidity in the tread circumferential direction is less than the rigidity of the nearby strip adjacent to the central strip from respective sides.

EFFECT: tire tread central part wear degree reduction and therefore improved tread adhesion with the support surface.

7 cl, 8 dwg, 3 tbl