| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire improving radiation performance and increasing durability. SOLUTION: The pneumatic tire 10 has a groove 30 wherein the depth of a tire in a width direction and the depth of the tire in a diametrical direction are increasing from the front to the back in a tire rotating direction (in a direction of an arrow R), in a grounding end 24. By travelling with installing such a tire 10 to a vehicle, air flowing from the front to the back in the tire rotating direction along a tread part 18 and a shoulder part 20 is flowed into the groove 30. Therefore, the grounding end part 24 of the pneumatic tire 10 is cooled to control a separation on an end part of a belt layer 16, which improves the durability of the tire 10.
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