Patent ID: 8312903

Claim:
A pneumatic tire for use on trucks, the tire comprising: a tread, the tread having a non-skid depth (NSK), the tread including an inner and outer shoulder rib and a first, second, third and fourth inner rib, and circumferential grooves interposed between the ribs, wherein the tread is asymmetric, wherein the outer shoulder rib has a rib width/second inner rib width ratio in the range of about 1.2 to about 1.8, and the inner shoulder rib has a rib width/second inner rib width ratio in the range of about 1.0-1.6, wherein the inner and outer shoulder ribs each have a plurality of tread blocks, and the inner ribs have a plurality of tread blocks, wherein the inner ribs each have more tread blocks than the outer shoulder rib, wherein all of the inner ribs have a lateral sipe which extends completely across the width of the rib and has a depth of at least 50% NSK, and an angle of an outer shoulder rib sipe is less than the angle of at least one of the inner rib lateral sipes.