Originally Posted by
Epstein
well that didn't take long for me to chime in....
This is wrong. Swept area is the area of the disk that touches the pad while rotating. That is, the area of a ring. = Pi * (R1^2 - R2^2), where R1 is the rotor diameter, and R2 is the rotor diameter minus the pad width or R1-pad. Make rotor bigger => make swept area bigger.
you would be correct if the pad actually touched the larger rotor completely, but the pad does NOT cover the same area of the rotor (actually slightly less even) because these rotors are NOT made for these calipers....From what I was told the pads hang over the top of the rotor just slightly???
But in a correct caliper rotor combination you would be ABSOLUTELY POSITIVELY CORRECT!