A tyre of rubber material with a flank (3) and a pattern formed on this edge (5), wherein the pattern comprises a plurality of openings (7) and intermediate areas, which separate these openings, characterized in that, in order that the pattern, a contrast with the flank forms, the openings (7) at least 60% of the pattern covering, wherein the openings in the pattern with a density of at least five openings per square millimeter (mm2) are distributed, whereby the openings are equivalent diameter of between 0,03 mm, and 0,5 mm.
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