| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire which maintains steering stability on a dry road surface and improves on-snow performance.SOLUTION: A tread part 2 has a pair of shoulder main grooves 3 and a center main groove 4 continuously extending in a tire circumferential direction at an inner side of the shoulder main grooves 3 in a tire axial direction, for dividing a pair of shoulder land parts 5 and a pair of middle land parts 6. A ratio W1/W2 of width W1 of the shoulder land part 5 and width W2 of the middle land part 6 is 1.6-2.0. On the shoulder land parts 5, a shoulder sub groove 10 is provided thereby a main part 11 and a sub part 12 are included. On the shoulder land parts 5, plural shoulder lug grooves 13 and shoulder sipings 16 are provided. Groove width W3 of the shoulder sub groove is 1.3-2.7% of tread grounding width TW. |
