| 摘要 |
PROBLEM TO BE SOLVED: To perform the thinning of a sidewall rubber while preventing defective molding. SOLUTION: In a meridional cross section of a tire, rim assembled to a normal rim and in a normal internal pressure state wherein the tire is filled with normal internal pressure, a border line of a sidewall inner area Y ranging from a separating point P1 wherein a toe of bead 4 separates from a rim flange of a normal rim J, to a position P2 of an outer surface of a sidewall part separated at a distance (h) being at least 40% of a tread end height TH from a bead base line in a tire radial outward direction, is formed in a straight line or a recessed circular arc dented toward a tire inner cavity side.
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