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Drilled vs. Slotted Rotors

When it comes to figuring out what type of rotor to buy, things can be a bit confusing. One of the most commonly asked question is what are the differences between a cross-drilled rotor and a slotted rotor from R1Concepts. Which type of rotor you should buy comes down to your preferences and driving conditions. Both types will provide increased stopping power over OE replacement brakes but will also cost more.

Some people will require cross-drilled rotors while others need slotted rotors. Then we have those who like to have best of both and get the Cross-Drilled AND Slotted Rotors from us. All our rotors are directional for maximum cooling and performance.

Cross-Drilled Rotors

Cross-Drilled brakes means that the rotors have drilled countersunk holes throughout specific parts of the rotor. Having drilled holes allows the rotor to cool off faster, allow the rotor to have a longer lifespan, and reduces the chances of the rotor warping due to the intense heat that’s generated from stopping your vehicle. With better cooling, your brake pads will also last longer since brake fading will be reduced.

If you live in an environment that is typically hot, we recommend getting Cross-Drilled rotors to help cool down the rotor and reduce the chances of warping to ensure the maximum lifespan if your brake rotors and pads.

Slotted Rotors

Slotted brakes means that there are lines (slots) machined into the rotor. The purpose of the slots are to reduce dust that gets onto the rotor. The dust is swept into the slots when the brake pads are applied. Once the dust is inside the slots, wind currents from driving and the momentum from the spinning rotor forces the dust to fly off the rotor.

Slotted rotors are recommended for those who have brake pads that give off a lot of dust or live in environment where there is a lot of pollution.

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