| abstract |
The present invention relates to a tire having a tread of lug and groovenconfiguration of a black-colored, carbon black reinforced rubber composition,nwherein at least a portion of the visible surface of at least one of said grooves,nexclusive of the outer surface portion of said carbon black reinforced rubbernlugs intended to be ground-contacting, is of a non-black colored, syntheticnamorphous silica reinforced rubber composition exclusive of carbon black. |