| 摘要 |
PROBLEM TO BE SOLVED: To improve stability and controllability without degrading durability and ride comfort. SOLUTION: Along an inner side of bead apex rubber 8, an inner short-fiber- reinforced rubber layer 10 is arranged in which 10 to 30 parts by weight of short fiber is blended with 100 parts by weight of rubber and the short fiber is oriented in a tire circumference direction. The inner short-fiber-reinforced rubber layer 10 extends from a bead core 5 to a height position inward of an outer end 8e of the bead apex rubber 8.
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