ROTOR STYLE: Contact Surface treatment 2

ROTOR STYLE: Contact Surface treatment 2



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 So-called plain rotors have smooth contact surfaces, and this is what is found on most OE rotors. However, you'll find that plain rotors can also function well as performance rotors. They just don't necessarily look as cool as a "treated" surface.


 Slotted rotors feature indented, shallow slots cut into both sides of the rotor faces. These slots allow more water, heat, brake dust, and friction gases to slide out from underneath the pads. Because slotted rotors stay cooler, they're ideal for aggressive driving and 4WDs that haul heavy loads or tow trailers. Since the slots are not deeply cut into the rotor, there is minimal risk of the disc cracking.