| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire 2 which is excellent in durability and has preferable operational stability upon direct advance and upon turning. ! SOLUTION: A tire 2 is provided with such a front side region S that a tread 4 is located on the outer side direction of a vehicle when the tire 2 is fitted to the vehicle and such a back side region B that the tread 4 is located on the inner side direction when the tire 2 is fitted to the vehicle. A boundary of the front side region S and the back side region B is located on an equatorial plane of the tire 2. When N and M are set as natural numbers, in a cross-section vertical to the circumferential direction, the profile of a tread plane 22 on the front side region S is formed with N pieces of circular arcs convex to the radial direction outer side and the profile of the tread plane 22 on the back side region B is formed with M pieces of circular arcs convex to the radial direction outer side. The number N of pieces is 2 or more. The number M of pieces |
