PNEUMATIC TIRE WITH THREE-DIMENSIONAL SIPE

Example of pneumatic tire (100) with circumferential outer surface, are described. In an example, the pneumatic tire (100) includes a tread portion (102) having plurality of tread blocks (106) spaced apart on the outer surface by defining a groove between the adjacent tread blocks (106). The tread blocks (106) further include a sipe (108) formed across the surface of the tread blocks (106). The sipe (108) include a pair of walls facing each other having periodically repeating corners and depressions. The sipe (108) further include a sinusoidal and a semicircular connecting portion for improving tangential and lateral stiffness of the tread pattern, respectively.