| 摘要 |
PURPOSE: A pneumatic tire with multi-tread rubber composition is provided to improve the performance of the tire by manufacturing tread rubber suitable to the required characteristics of each area in tread. CONSTITUTION: In a pneumatic tire, directed patterns(4) are formed to an inner part(2) of tread around a tread center(1), and undirected patterns(5) are formed to an inner part(3) of tread. In the pneumatic tire with multi-tread rubber composition, the inner part of the tire having width of 0.5¯45% to the full tread width comprises tread rubber composition excellent in wet road-tractive ability, and the outer part having width of 0.5¯45% to the full tread width comprises tread rubber composition excellent in the braking performance. The middle part except the inner and outer parts comprises tread rubber composition excellent in the wear resistance.
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