Big Brake Kit Discovery

[cdydjded]

Originally Posted by Lil Abner

Actually, no. You are correct about the tires rotating different per mile depending on the diameter. But that doesn't apply to the rotors. The rotors will ALWAYS rotate at the same revolutions per mile as the tires!!! This is because the rotors are attached to the wheels. The wheels to the ground.

You did not understand what I put. Obviously the tire & the rotor rotate the same revolutions. My point in using the tire calculator is cause you can use a taller tire or shorter tire which would apply to a rotor with a 12" diameter (taller) or 10" diameter (shorter). My point is no mater what it is a tire, a rotor anything with a circumference, the bigger it is the slower it rotates, the smaller it is the faster it rotates.