| 摘要 |
<p>PURPOSE:To offer a pneumatic radial tire excellent in road noise performance and driving stability and having two bead filler on its bead portion. CONSTITUTION:Regarding a pneumatic radial tire having its end portion of a carcass layer 1 on a bead B turned and rolled up from the tire inner side to the outer side around a bead core 2 and a No.1 bead filler arranged to the outside in the tire radius direction of the bead core 2 and having a No.2 bead filler 4 arranged on the outer side of a carcass layer roll up portion 1a, in case the width of the No.2 bead filler 4 in the tire radius direction is L, the height of the outer side end 4a of the No.2 bead filler in the tire radius direction is H and the tire section height is SH, then it is 0.4<=L/SH<=0.6, 0.5<H/SH<=0.6.</p> |
