| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire that achieves improvement in wet performance while ensuring rigidity of the tire mounting outside.SOLUTION: A plurality of circumferential main grooves extending along in the tire circumferential direction are formed in a tread 16. An outer rib 46, to which a land part continues in the tire circumferential direction, is formed on the outer side of a vehicle in tire mounting than the plurality of circumferential main grooves. A fourth lug groove 42 is extended toward the outer rib 46 from an outermost circumferential main groove 24 formed on the outermost side of the vehicle in tire mounting, of the plurality of circumferential main grooves. The groove width of the fourth lug groove 42 is gradually increased from the outermost circumferential main groove 24 side toward the outer rib 46, and the fourth lug groove is terminated at a part closer to the side of the outermost circumferential main groove 24 than the tire grounding end 16E. |
