FYI
Slotting rotors accomplishes the same thing as cross drilling, without weakening the rotor. Cross drilling a rotor weakens it. It has long been out of use in racing. You still see rotors cross drilled on high end street automobiles, strictly for curb appeal, looks, not functionality.
A small boundary layer of gas builds up between the pad & the rotor during breaking, the slots or cross drilled holes give the gas some way to escape.
cowboy from hell
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