| 摘要 |
<p>The present invention relates to a tire (10) having a casing (12) with a carcass (14) and an annular tread (40) having lugs (44). The tread (10) may be divided into a plurality of circumferentially repeating design cycles of at least two design cycle lengths. At least some of the lugs (44) are inscribed or molded with indicia (42, 42a) for indicating the amount of lug wear. The indicia (42) is placed on a lug (44) in a position, usually a trailing side (54) of a lug (44), that is protected from wear, so that the indicia (42) is legible through out the useful life of the tire.</p> |
