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Product Details
Paragon Performance Rotor Rings are engineered for high-performance street, track, and race applications where consistent braking, thermal stability, and durability are critical. Designed with advanced directional ventilation and a floating 2-piece architecture, these rotor rings deliver superior cooling efficiency, reduced vibration, and excellent resistance to cracking under sustained high-load conditions.
Manufactured from Paragon’s CM-250 specially formulated high-carbon cast iron alloy, each rotor ring provides optimal initial bite, stable friction characteristics, and outstanding high-temperature strength. Every ring is stress-relieved through heat treatment and finished using state-of-the-art CBN surface machining to ensure smooth pad bedding and consistent braking performance.
Strict quality control ensures lateral run-out is maintained within 0.03mm, with rotor balance controlled to within 2 grams. The floating design allows controlled thermal expansion, minimising distortion while keeping the rotor self-centred within the caliper. The slotted surface maintains a clean pad interface, improves gas evacuation, and enhances wet-weather braking consistency compared to blank rotors.
Key Features
- 72 directional ventilation vanes for maximum cooling efficiency
- Up to 30% cooler operation compared to OE rotors
- Floating 2-piece design to reduce brake fade and judder
- High-carbon CM-250 cast iron alloy for durability and thermal stability
- CBN-machined friction surfaces for improved pad bedding
- Reduced unsprung mass while retaining proper thermal capacity
Direct Replacement Compatibility
These rotor rings are a direct replacement for:
- Endless E917034E013
Commonly used in Endless 6POT, Mono6 Sports, Racing6, and Racing Mono6 big brake kits.
What’s Included
- Paragon Performance Rotor Rings – Left & Right (Pair)
- Detailed installation manual
Technical Specifications
| Outside Diameter (A) | 370mm |
| Thickness (B) | 34mm |
| PCD (M) | 247.9mm |
| Number of Mountings | 10 |
| Mounting Size | 8.1mm |
| Mounting Type | Round |
| Internal Diameter (C) | 262mm |
| Inside Flange Diameter (D) | 228mm |
| Mounting Flange Thickness (H) | 8mm |
| Flange Face Type | Step Up +1.5mm |
| Maximum Pad Depth | 54mm |
| Number of Vanes | 72 |
| Air Vane Gap | 16.6mm |
Assembly & Installation
Professional installation is recommended. Please refer to the detailed installation manual and technical drawing before assembly to ensure correct fitment and mounting.
Technical drawing:
370x34mm Rotor Ring Drawing – Endless E917034E013 Replacement
No instructions available for this product.

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