AP Racing Ventilated Brake Discs 254-295mm - 280mm, 8 Grooved, Right Hand, CP3047-288/9

Plain (P) - Mainly used on road applications where road noise is a concern.

• G4, 8, 12, 24 = Grooved (Straight, forward-facing)
• Traditional style straight grooves. The number signifies how many grooves are on the disc face.

• CG4, 8, 12, 24 = Curved Groove (Backward-facing)
• This is a standard grooved pattern. The number signifies how many grooves are on the disc face.

• CR4, 8, 12, 24 = Curved Groove (Backward-facing running to the edge of the disc diameter)
• Ideal for clearing debris from the disc face. The number signifies how many grooves are on the disc face.

D = Cross Drilled - The drilled holes are chamfered with holes spaced across the face of the disc in lines. Still preferred with some pad materials but can compromise the disc life.

GD = Grooved and Drilled - Usually used on road applications.

RD = Radius Drilled - The same as cross drilled but with a radiused run out to the edge of the disc, reduced noise and improved life when compared to standard drilling patterns. Mainly used for aesthetic reasons on road applications.

• RA = J-Hook Design - The outer grooves run out to the edge of the disc face, used on thick wall discs only. This pattern gives improved bite and debris clearance, it also reduces distortion or vibration.

• GA = J-Hook Design - The same as RA type but the outer groove does not run to the edge of the disc.

• RC = J-Hook Design - The same as RA type but has 3 hooks across the disc face. Designed for thick wall discs only.