While there are more than a handful of brake rotor designs and types out there, everyone in the industry knows that the most preferred and known ones are the cross drilled and slotted rotors. Now if you are given the task to make a comparison, these two varieties are your best bet because the rest don't really have the same popularity and preference.
Perhaps the most important information you need to know at this point is that both cross drilled and slotted rotors are specifically designed in such a way that they allow gases that have the tendency to build up in between the rotor and brake pads to escape. What therefore happens is that the brakes are properly maintained and cooled, which in turn allows a better stopping performance.
Cross Drilled Rotor Type
The concept behind the design of the cross drilled rotor is to allow heat or gas to escape the moment it starts building up between the brake pad and rotor, with the drilled holes providing the escape route. You should know that many people prefer cross drilled rotors because of the way they look, but it's also worthy to note that there also are cases in which cracks developed in between the drilled holes. However, the main culprit for those cracks is the fact that the rotor was made using low quality material. Hence, even if this type of rotor is designed to expel gases, it can't last long if it's made out of low quality material. In case you are leaning towards buying this type of brake rotor, our recommendation is to buy it from a renowned brand.
On the other hand, slotted brake rotors are specifically designed as an alternative to drilled rotors because they have the same ability to expel hot gas, but this time, there no longer is a risk for cracks commonly found in drilled rotors. On one hand, cross drilled rotors are designed to look good and for show, but slotted rotors on the other hand are for better performance. They also are widely known to perform a lot better in wet conditions because the design allows water to move away from the rotor for efficient braking.
For many brake companies out there, they like to claim that their rotors are definitely more capable and long lasting than stock rotors. Also, they claim that there also is lesser brake fade. It's really up to the consumer like you to believe them or not. Well, at the day's end, we recommend that if you're using your rotor for the track or simply in the streets, you can choose either the cross drilled or slotted version; just make sure you get them from a reliable and well-known brand. And don't forget to buy and install good quality brake pads.