[C58-2024-BP]Sp Performance Cross drilled rotors with black zinc plating(sold as pair)

SP Performance Sinusoidal Curved Chamfered Hole:

After many years of development we have come up with a drilling and chamfering method that absolutely has no sharp edges.Our brake discs are drilled with our exclusive sinusoid curved chamfer. The chamfer promotes cooling, minimizes stress, vents moisture and dust while minimizing heat checking and cracking. The smooth design also increases both rotor and pad life. 

How Cross Drilled Rotors Work:

Cross Drilled Rotors, as mentioned above, are the go to for all performance car manufacturers. The reason for this is the ability for the holes to keep the brake pads and brake rotors as cool as possible during heavy braking. The cross drilled holes, just like in the drilled and slotted brake rotors, will keep the brakes cooler and help with removing water to prevent hydroplaning. While Cross Drilled rotors look amazing and perform great, there is a risk that comes with them. There is always the chance of these brake rotors developing stress cracks when under extreme use, the radial chamfer on SP Rotors will reduce those stress cracks. Also, during normal street use, the rotors will never see enough heat to create stress cracks, however, with that said, these rotors are not recommended for track use.