| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pneumatic tire which has a high grip force and a low rolling resistance.SOLUTION: In this tire 2, a tread 4 is equipped with a center part C positioned at a center, and a pair of shoulder parts S, each of which is positioned in an axial direction on outer side of the center part C. The center part C has a first rubber. The shoulder part S includes a main reinforcement 42 extending in a circumferential direction and an auxiliary reinforcement 44 extending in a circumferential direction. In the shoulder part S, the auxiliary reinforcement 44 is positioned at an inside end in an axial direction, and the main reinforcement 42 and the auxiliary reinforcement 44 are alternately disposed outwards. The main reinforcement 42 is configured from the first rubber, and the auxiliary reinforcement 44 is configured from a second rubber. A width of each auxiliary reinforcement 44 is smaller than a width of the main reinforcement 42 disposed adjacent to an outer side of the auxiliary reinforcement 44. A loss tangent LT2 of the second rubber is smaller than a loss tangent LT1 of the first rubber.</p> |
