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Vented vs Solid Rotors

Sharing is learning for us at the same time as well.


Today, lets look at vented rotors , a term that you often hear about rotors.

So what is a vented rotor ?

Lets take a look at the attached picture


On the left you have the vented rotor , on your right , the solid rotor.


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The term "vented" literally comes from ventilation in the use for brake rotors, the hollow channel in the middle of the disc rotors allow for much better heat dissipation and in return , helps with brake fade.


In the modern world application, vented rotors are used for almost all modern car front axles , although bigger cars do come with rear vented rotors as well.


Vented rotors are also usually way thicker than solid rotors due to the hollow channel needed in-between the rotors and are the often preferred option for performance brakes.


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The term "solid" refers to the one layer type rotor as seen in the right side of the picture.


Solid brake rotors are formed of a single piece of material, most commonly cast iron. They're commonly found on the rear axle of cars with four-wheel disc brakes systems especially modern cars.


A solid rotor is less expensive to produce since it is easier to make. Due to braking bias, heat build-up is less likely on the rear axle.

Thus eliminating changes of brake fad in normal driving.

This is why some manufacturers employ them in the back as a way to reduce production costs.


In some rare cases , race cars have been retrofitted with solid discs before in a bid to reduce rotating mass when acceleration is top priority.


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Having the above said , please do not go asking for quote to change your rear stock rotor from solid to vented, it all depends on the manufacturer's design


Not to forget vented discs are way thicker than solid discs and no way of fitting into your stock caliper, this is why its almost not possible to relocate your front stock rotor to rear usage.




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