| 摘要 |
<p>The invention relates to a tread (1) for a tyre, that comprises a plurality of grooves (21, 22) defining blocks (4) and/or ribs, the grooves having an average thickness H. The tread has a rolling surface (10) intended to be in contact with the road when rolling, the rolling surface being characterised in that it is in contact with the road only by a plurality of relief contact lines (7), the relief contact lines intersecting each other in order to define a plurality of cavities on the rolling surface (10), i.e. portions located radially inside said rolling surface.</p> |
