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Designed for high-performance street and track use, the Paragon 2-Piece Rear Rotors provide a major upgrade in cooling efficiency, thermal stability, and unsprung weight reduction. Engineered for the Audi RS4 and RS5 B9 / B9.5 platforms, these 330mm x 22mm rotors bolt on directly while retaining full OEM ABS and brake bias functionality.
Why Choose Paragon Rotors?
- Track-proven cooling performance and fade resistance
- Significant unsprung weight savings for improved handling
- Floating design minimises heat distortion and judder
- CBN-machined and precision balanced for vibration-free braking
Key Features
- 330 x 22mm slotted rear rotors with directional cooling vanes
- Up to 30% cooler running vs OEM — less fade, more consistency
- Floating 2-piece design allows thermal expansion under load
- Slotted surface improves wet braking and pad bite
- CM-250 high-carbon alloy cast iron rotor rings – heat-treated and CBN-machined
- Run-out ≤ 0.03mm; dynamically balanced within 2 grams
- Rotor-to-hat mount: D-Bobbin (Short) – 10-bolt system
- Each rotor weighs 5.49 kg – saving approx. 0.77 kg per side vs OEM
Construction
Rotor Rings
Cast from CM-250 high-carbon alloy, Paragon rotor rings offer excellent thermal conductivity and strength. Heat treatment and CBN surface machining ensure stability, consistent flatness, and optimal pad break-in.
Aluminium Hats
Rotor hats are CNC-machined from aerospace-grade 6061-T6 aluminium and MIL-A-8625 Type III hard anodised for heat and corrosion resistance. Material is removed where possible to reduce weight without compromising strength under load.
Finish Options
- Hard Anodised (Clear): Will not discolour under sustained heat – best for track use
- Black Dyed Hardcoat: May discolour above 260°C – ideal for street applications
Vehicle Fitment
- Audi RS4 B9
- Audi RS4 B9.5 (Facelift)
- Audi RS5 B9
- Audi RS5 B9.5 (Facelift)
- Model Years: 2018+
Fitment Notes
- Direct bolt-on installation – no modifications required
- Maintains OEM ABS and brake bias
- Compatible with OEM and aftermarket pads (same pad depth)
Technical Specifications
Rotor Diameter | 330mm |
Rotor Thickness | 22mm |
Weight (each) | 5.49 kg (12.10 lbs) |
Weight Saving | Approx. 0.77 kg (1.7 lbs) per rotor vs OEM |
Mounting System | D-Bobbin (Short), 10-bolt |
Hat Material | 6061-T6 aluminium, hard anodised |
Ring Material | CM-250 high-carbon cast iron |
Surface Finish | CBN precision-machined |
Technical Specifications
Specifications:
Diameter: 330mm (12.99")
Thickness (new): 22mm (0.87")
Thickness (min.): 20mm (0.79")
Type: 2-piece floating
Face Pattern: Slotted
Vented / Solid: Directional ventilated
Number of Vanes: 48
Hat Material: 6061-T6 aluminum
Friction Ring Material: CM-250 high carbon alloy cast iron
Rotor Finish: CBN turned
Cross Reference:
OEM Audi 8W0615601G
Girodisc A2-149
No instructions available for this product.

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