What is a Mill Balanced brake rotor?
Mill Balancing is the indentation or notch that you may see on the side of a brake rotor.
This balancing process ensures the even distribution of weight around the axis of rotation. A properly balanced brake rotor virtually eliminates vibration, noise, and erratic wear patterns when properly installed.
Even though some Power Stop brake rotors come without the Mill Balancing notch, they too are 100% balanced.