| 摘要 |
PROBLEM TO BE SOLVED: To provide a pneumatic tire capable of improving roll-over resistance without deteriorating the responsivity of minute steering when an automobile travels straight and braking performance. SOLUTION: The tire T1 comprises a first tread rubber 10a, and a second tread rubber 10b having a smaller friction coefficient to a road surface than that of the first tread rubber 10a. A ratio D2/D1 of a distance D2 from a tire equator line 14a to a rubber boundary line 14b between the first tread rubber 10a and the second tread rubber 10b to a distance D from the tire equator line 14a to a tread grounding end 14c, is 1 to 1.1. COPYRIGHT: (C)2007,JPO&INPIT
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