Tire sidewall design patterns

A tire sidewall having an annular surface, the surface having a design pattern, the design pattern consisting of:

• a) a first design pattern, the first pattern having a plurality of ridges of similar cross sectional shape, each ridge being substantially parallel to an adjacent ridge of the first pattern and inclined relative to the circumferential direction;
• b) a second design pattern superimposed over a portion of the first design pattern, second pattern having a plurality of spaced ridges, each ridge being substantially parallel to an adjacent ridge of the second pattern and extending outwardly from the first pattern and in an angular direction between 45.degree. and 90.degree. relative to the ridges of the first pattern;
• and
• c) a third design pattern, the third pattern having at least two circumferentially extending parallel ridges angularly oriented in the range of 45.degree. to 90.degree. relative to the ridges of the first design pattern and wherein the ridges of the first pattern are located between the intersect a radially inner ridge of the third pattern and a radially outer ridge of the third pattern;
• and, wherein when the first pattern appears shiny or highly light reflective, the second pattern appears dark, and conversely when the second pattern appears shiny or highly light reflective, the first pattern appears dark, yielding an inverse contrast between the first and second pattern which changes as a function of the observer's position relative to the tire.