| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire with high wet drainability for improving operation stability compatible with improvement of abrasion resistance. SOLUTION: A center main groove 14 that runs in a circumferential direction of tire is arranged on a ground center line SL. Inside a vehicle width direction of the ground center line SL, an inside gentle sloping breadth main groove 22 connected with a first inside circumferential direction main groove 16, a second inside circumferential direction main groove 18 and the center main groove 14 is mounted thereon. Outside a vehicle width direction, an outside gentle sloping breadth main groove 24 connected with the center main groove 14 and an outside steep sloping length main groove 20 connected with the outside gentle sloping breadth main groove 24 are arranged thereon. Thereby, uneven abrasion of land parts 26 and 28 can be controlled for improving operation stability to drain effectively water on the ground center line SL hard to be drained from inside a ground face with little resistance from the water. |
