| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic radial tire realizing improvement in stability and controllability performance and riding comfortability performance without causing indoor noises and deterioration rolling resistance and increase of tire weight. SOLUTION: The pneumatic radial tire with a carcass 3 in a toroidal shape by straddling between a pair of bead parts 1 as a skeleton and with a belt 4 and a tread 5 sequentially arranged on the outside in the diametrical direction of a crown part of the carcass 3 is constituted by respectively providing reinforcing layers 6a and 6b by cords on the bead part 1 and a range R1 to an end part on the belt side from a tire maximum width part.
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