Performance Rotor Rings 330mm x 32mm (12.99” x 1.26”) - P.C.D. 203.2mm - I.D. 220mm - D55

We have two options for replacement of these Alcon designed rotors. For racing and high performance use we recommend the Alcon/Pro-Systems replacement rotor. For a more affordable version we carry Paragon Performance Rotors.

Alcon/Pro Systems versions are machined at our facility in Mooresville, North Carolina from specially formulated grey cast iron providing the best in thermal stability, friction coefficient and heat transfer characteristics. These rotors are Dyno-bedded after being precision machined. Dyno-bedding ensures the most reliable and stable rotor the moment you put it on the car. This also helps reduce or eliminate the potential for brake shudder due to improper bedding. These rotors are made to order and will take 4-6 weeks to deliver.

Used in the highest level of motorsports including Daytona Prototypes, GT, and TransAm you are guaranteed the best rotor for your braking needs.

Paragon Rotors are made of CM-250 special formulated high carbon alloy cast iron, it allows for an optimal bite, thermal characteristics, high-temperature strength and durability. Rotor rings are heat treated to release stress in the rotor to avoid deformation and vibration then turned by state-of-the-art CBN surface machining to ensure better break-in with new brake pads. These rotors offer solid performance on a budget and go through rigorous quality control procedures and inspections to ensure the rotor rings are fit for their purposes. These rotors take 2-3 weeks to deliver.

Vibration is reduced as the rotor lateral run-out is kept within 0.03mm and well-balanced: variations are kept within 2 grams. All rotor rings went through rigorous quality control procedures and inspections to ensure the rotor rings are fit for their purposes. The floating 2-piece design allows thermal expansion of the rotor while minimizing deformation and ensuring the rotor is self-centered with the pads. A slotted rotor improves braking consistency by maintaining a clean contact surface and dissipate heat generated and gases released when the pads come into contact with the rotors. Slotted rotors have a superior advantage over blank rotors in wet or raining conditions by preventing water films to form between the brake pad and rotor surface. Weighing less than most O.E. rotors while maintaining proper thermal capacity, our rotors improves overall handling by saving unsprung mass.

• Directional ventilation vanes for optimal cooling performance and increased resistance to cracking. Run up to 30% cooler than O.E. rotors and increase cooling efficiency by up to 30%

• Floating 2-piece design

• Minimizing brake fade & judder during extended sessions

• Weighs 14.7 lbs (6.65 kg)

Includes:

• One pair Performance Rotor Ring (LH & RH)

• Detailed installation manual

Replacement of:

• AP Racing CP3581-222/3 (CP3581-222 / CP3581-223 / CP3581-222/223)

• Alcon DV330/32/55-12/203

• DBA57904.1

Specifications:

• Outside Diameter "A": 330mm

• Thickness "B": 32mm

• P.C.D. "M": 203.2mm

• Number of Mounting: 12

• Size of Mounting: 6.4mm

• Type of Mounting: Round

• Internal Diameter "C": 220mm

• Inside Flange Diameter "D": 190mm

• Mtg. Flange Thickness "H": 5.6mm

• Type of Flange Face: Step Up +0.15mm

• Max Pad Depth: 55mm

• Number of Vanes: 48

• Air Vane Gap: 17mm

Extra/replacement hardware is available for purchase. We recommend using new hardware when replacing rotors to ensure the rotor ring is attached to the aluminum hat properly. Please refer to our Rotor Assembly Instructions for torque specs and detailed instructions.

SKU: PRR.8009.330.2200.320.20320.03.03.L/R and

SKU: DV330/32/55-12/203L/R