Patent ID: 8267135

Claim:
A pneumatic tire comprising a tread surface in which a plurality of circumferential grooves extending in a circumferential direction of the tire is formed, wherein, the plurality of circumferential grooves includes at least one first-region circumferential groove ( 10 ) formed in a first region on one side of a tire equator line (CL), and at least three second-region circumferential grooves ( 11 , 12 , 13 ) formed in a second region on other side of the tire equator line (CL), the first region being provided to an outer side of a vehicle and the second region being provided to an inner side of the vehicle when the tire is mounted thereon, the number of the second-region circumferential grooves ( 11 , 12 , 13 ) is two or more larger than the number of the first-region circumferential groove ( 10 ), at least a first-region shoulder land portion ( 6 ) bordered by the first-region circumferential groove ( 10 ), a second-region shoulder land portion ( 4 ) bordered by the second-region circumferential grooves ( 11 , 12 , 13 ), and a central land portion ( 5 ) placed between the first-region circumferential groove ( 10 ) and the second-region circumferential grooves ( 11 , 12 , 13 ) are formed on the tread surface, and a plurality of continuous lug grooves ( 21 ) and a plurality of lug grooves ( 20 ) are formed on the tread surface, the continuous lug grooves ( 21 ) open to a tread edge (TE 2 ) of the first-region shoulder land portion ( 6 ), extend in a direction toward the second-region circumferential grooves ( 11 , 12 , 13 ), continue into the central land portion ( 5 ) intersecting the first-region circumferential groove ( 10 ), and terminate without opening to the second-region circumferential groove ( 13 ), which borders the central land portion ( 5 ), among the three second-region circumferential grooves ( 11 , 12 , 13 ), the lug grooves ( 20 ) open to a tread edge (TEl) of the second-region shoulder land portion ( 4 ), extending in a direction toward the second-region circumferential grooves ( 11 , 12 , 13 ) and terminate without opening to the second-region circumferential grooves ( 11 , 12 , 13 ).