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Passenger tire having low rolling resistance with improved wet traction and treadwear
Passenger tire having low rolling resistance with improved wet traction and treadwear
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机译:具有低滚动阻力的乘用轮胎,湿牵引力和胎面磨损得到改善
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摘要
A tire having a tread includes an outer tread layer and an inner tread layer. The inner tread layer includes one of a first elastomeric compound and a second elastomeric compound. The outer tread layer includes the other of the first and second elastomeric compounds. The second elastomeric compound has a lower rolling resistance and greater resistance to treadwear than the first elastomeric compound. The inner tread layer increases in thickness across at least a widthwise portion of the outer tread layer with a maximum thickness of one of the inner tread layer and the outer tread layer occurring near at least one of a first shoulder and a second shoulder of the tread. As the tread wears, the inner tread layer defines a greater proportion of a running surface of the tread.
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