| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pneumatic tire 2 in which reduction of rolling resistance is achieved without considering influence on mass.SOLUTION: A profile OL of a tire 2 includes a ground contact face 46 and a pair of side faces 48. A zone from a point PB to a point PW of the profile OL is formed by three arcs. The arcs comprises: a first arc; a second arc extending radially nearly outward from the first arc; and a third arc further extending radially nearly outward from the second arc. A ratio of a curvature radius R2 of the second arc to a curvature radius R1 of the first arc is 1.45 or greater and 3.26 or less. A ratio of a curvature radius R3 of the third arc to the curvature radius R1 of the first arc is 0.45 or greater and 0.56 or less. A sidewall 8 of the tire 2 includes a first recess 50a and a second recess 50b recessed inward from the side face 48.</p> |
