| 摘要 |
PROBLEM TO BE SOLVED: To improve uneven wear resistance and WET performance.SOLUTION: In a pneumatic tire, when the number of peripheral direction main grooves 3 is an odd-number, the peripheral direction main groove at a center is defined as a center main groove 31, and rib-shaped land sections 4 adjacent to both outer sides in a tire width direction of the center main groove 31 are defined as side rib-shaped land sections 41. The pneumatic tire includes each peripheral direction narrow groove 5 which extends along a tire peripheral direction and is formed to have a shallower groove depth than the peripheral direction main groove 3 in a range of 40 to 60 [%] of a tire width direction dimension of the side rib-shaped land section 41 from one side in the tire width direction of the side rib-shaped land section 41, each of a plurality of width direction narrow grooves 6 which is provided in the side rib-shaped land section 41, has one end terminated by being communicated with the peripheral direction main groove 3 adjacent to the outer side in the tire width direction of the side rib-shaped land section 41 and other end extending to cross the tire peripheral direction while being terminated in the side rib-shaped land section 41 by being passed through the peripheral direction narrow groove 5, is formed to have a shallower groove depth than the peripheral direction main groove 3, and is disposed in the tire peripheral direction, and a peripheral direction groove bottom sipe 7 formed along an extension direction of each peripheral direction narrow groove 5 at the groove bottom of each peripheral direction narrow groove 5. |
