| 摘要 |
<p>PURPOSE:To provide a pneumatic radial tire in which a riding sensation is improved to a higher grade without lowering steering stability. CONSTITUTION:A bead filler 2 arranged at the upper part of a bead core 3 is formed such that at least three kinds of rubber layers 2a, 2b, and 2c different. in hardness from each other are laminated in the radial direction of a tire. Hardness of the rubber layer is set to a range of JIS hardness 55-59 and the more the rubber layer is near the bead core 3, the more hardness thereof is increased.</p> |
