| 摘要 |
<p>A pneumatic tire comprises a tread portion, a pair of sidewall portions, a pair of bead portions each with a bead core therein, wherein in a tire meridian section including a tire axis under a standard state that the tire is mounted on a standard rim and inflated to a standard pressure but loaded with no tire load, the tread portion has a tread width TW (mm) being from 80 to 90 % of a nominal tire width YW, a profile from a shoulder region of the tread portion to the sidewall portion includes a shoulder profile for defining the shoulder portion which is an arc having its center inside of the tire and has a radius of curvature of from 35 to 55 mm, a sidewall profile for defining at least a part of the sidewall portion which is an arc having its center inside of the tire, and a buttress profile smoothly connecting between the shoulder profile and the sidewall profile, wherein the buttress profile is an arc having its center outside of the tire and has a radius of curvature of from 20 to 60 mm.</p> |
