CPC B60C 11/0327 (2013.01) [B60C 11/0323 (2013.01); B60C 2011/0334 (2013.01); B60C 2011/0341 (2013.01)] | 13 Claims |
7. A system for increasing cornering stiffness of a tire tread comprising:
a circumferentially continuous main groove having a cross-sectional shape formed of opposed slanted walls joined together by a circumferentially continuous flat bottom;
a second circumferential main groove; and
a stabilizing structure for increasing tread stiffness, the stabilizing structure having a circumferentially continuous subgroove extending radially inward of the flat bottom of the first main groove, the subgroove being axially offset from a centerline of the flat bottom of the first circumferential main groove.
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