| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of cracks at a buttress surface caused by the aging of rubber. SOLUTION: This tire has an SOG structure in which a side wall rubber 3G extends up to a buttress segment 10 to cover the outer end part of a tread rubber 2G. The tread rubber 2G is formed by a base rubber Ga covering at least an outer end 7E in an axial direction of the tire in a belt layer 7, a cap rubber Gb forming a tread surface 2S, and a crack preventing rubber segment Gc passing between the side wall rubber 3G and the base rubber Ga and containing anti-aging agent of 1.5 to 5.0 phr. COPYRIGHT: (C)2004,JPO
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