| 摘要 |
The present invention relates to a tire having a tread of lug and groove configuration of a black-colored, carbon black reinforced rubber composition, wherein at least a portion of the visible surface of at least one of said grooves, exclusive of the outer surface portion of said carbon black reinforced rubber lugs intended to be ground-contacting, is of a non-black colored, synthetic amorphous silica reinforced rubber composition exclusive of carbon black.
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