[QUOTE] Originally posted by JVT:
we've had this argument before. What you're saying is true, but I don't think it applies to rotors. We've had this discussion before using the width of a tire. Why aren't we all running on 155mm tires? Using your logic, a 155mm wide tire will have as much grip as a 255mm wide tire. Absolutley false.
QUOTE]
Actually rubber behaves differently than most materials, and it IS an exception to this rule. I believe it holds true for all other common materials, however. If surface area really mattered why not just have a brake kit with giant brake pads?