| 摘要 |
<p>Provided is a pneumatic tire in which changes in steering stability with changes in speed, temperature environment, etc. during running are greatly reduced. A pneumatic tire has a tread part 1, sidewall parts 2, and bead parts 3, and includes a carcass layer 5 composed of at least one carcass ply, a belt layer 6 composed of at least one belt ply, and at least one belt protective layer 7. A cord having a difference in heat shrinkage stress between 30°C and 80°C of not less than 3.0 × 10 -2 cN/dtex is used as at least one cord in the belt protective layer 7, and the reduction rate of the dynamic storage modulus of elasticity E' of a coating rubber of the belt layer 6 in a temperature change from 30°C to 80°C is not less than 5%.</p> |
