Quote:
Originally Posted by wstar
Contact patch is a function of the car's weight at each corner, not the tire size. When you change the dimensions of the tire, it changes the *shape* of the contact patch, but the magnitude of the contact patch (square inches of area) remains the same. A wider tire has a wider contact patch, but also a shorter one.
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So a 155 tire and a 320 tire both 26" in diameter have the same contact patch in square inches? I don't think so.