{"product_id":"paragon-performance-2-piece-rotor-rings-355-32mm-215-9mm-pcd-12-6-4mm-mount-d55","title":"PARAGON Performance Rotor Rings – 355 x 32mm (PCD 215.9 \/ 12x6.4mm Mount) – D55","description":"\u003cp\u003e\u003cstrong\u003eParagon Performance Rotor Rings\u003c\/strong\u003e in \u003cstrong\u003e355mm × 32mm\u003c\/strong\u003e configuration are engineered for high-demand track and race applications, delivering exceptional braking consistency, thermal stability, and durability. Designed as a direct replacement rotor ring solution, these rings utilise a floating 2-piece architecture to allow controlled thermal expansion while maintaining precise pad alignment and stable braking feel under extreme conditions.\u003c\/p\u003e\n\u003cp\u003eManufactured from \u003cstrong\u003eCM-250 special formulated high-carbon alloy cast iron\u003c\/strong\u003e, the rotor rings provide excellent initial bite, superior heat management, and high-temperature strength. Each ring is heat-treated to relieve internal stress, reducing the risk of deformation and vibration during prolonged track use. Final machining is completed using state-of-the-art \u003cstrong\u003eCBN surface finishing\u003c\/strong\u003e to ensure optimal pad bedding and consistent performance.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003edirectional ventilation vane design\u003c\/strong\u003e actively draws cool air through the rotor, improving heat dissipation and increasing resistance to cracking. This design allows the rotor to operate up to \u003cstrong\u003e30% cooler than OE rotors\u003c\/strong\u003e, significantly reducing brake fade and judder during extended sessions. Precision balancing ensures lateral run-out is kept within \u003cstrong\u003e0.03mm\u003c\/strong\u003e, with weight variation controlled within \u003cstrong\u003e2 grams\u003c\/strong\u003e for smooth, vibration-free operation.\u003c\/p\u003e\n\u003cp\u003eSlotted braking surfaces help maintain a clean pad contact area, efficiently venting gases and heat while also offering improved wet-weather performance by preventing water film build-up between the pad and rotor face. Despite their high thermal capacity, these rotor rings are lighter than many OEM alternatives, reducing unsprung mass and contributing to improved handling response.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCM-250 high-carbon alloy cast iron construction\u003c\/li\u003e\n\u003cli\u003eDirectional ventilation vanes for maximum cooling efficiency\u003c\/li\u003e\n\u003cli\u003eFloating 2-piece rotor design for controlled thermal expansion\u003c\/li\u003e\n\u003cli\u003eHeat-treated and CBN-machined for consistent pad bedding\u003c\/li\u003e\n\u003cli\u003eSlotted surface for improved consistency and wet-weather performance\u003c\/li\u003e\n\u003cli\u003eUp to 30% cooler operation compared to OE rotors\u003c\/li\u003e\n\u003cli\u003eMinimised brake fade and judder during extended track use\u003c\/li\u003e\n\u003cli\u003eReduced unsprung mass compared to many OEM rotors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eIncluded\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eParagon Performance Rotor Rings (Left \u0026amp; Right)\u003c\/li\u003e\n\u003cli\u003eDetailed installation manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eReplacement Compatibility\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eAP Racing CP4542-106 \/ 107 \/ 106-107\u003c\/li\u003e\n\u003cli\u003eAP Racing CP4542-306 \/ 307 \/ 306-307\u003c\/li\u003e\n\u003cli\u003eAlcon DIV2146X717 \/ DIV2146X717C24L \/ DIV2146X717C24R\u003c\/li\u003e\n\u003cli\u003eDBA 52750.1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003ctable width=\"100%\" cellspacing=\"0\" cellpadding=\"8\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutside Diameter (A)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e355mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness (B)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePitch Circle Diameter (PCD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e215.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInternal Diameter (C)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e244mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInside Flange Diameter (D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e195mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Count\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.4mm (Round)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMounting Flange Thickness (H)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlange Face Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStep Up +0.02mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Pad Depth (D55)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Vanes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAir Vane Gap\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight (per ring)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.67kg (16.91 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eAdditional Reference\u003c\/h4\u003e\n\u003cp\u003eTechnical drawing available here:\u003cbr\u003e\u003ca rel=\"noopener\" href=\"https:\/\/paragonbrakes.com\/content\/drawings\/355x244x32-12x6.4-PCD215.9-D55.pdf\" target=\"_blank\"\u003e Paragon 355×244×32 Rotor Ring Drawing (PCD 215.9 \/ D55) \u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e PRR.8010.355.2440.320.21590.03.01.L\/R\u003c\/p\u003e","brand":"Paragon","offers":[{"title":"Default Title","offer_id":51894296740133,"sku":"PRR.8010.355.2440.320.21590.03.01.L\/R","price":1199.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0918\/2943\/6709\/files\/Rotor-ring-0147-T__56235.1616056387.jpg?v=1768283981","url":"https:\/\/www.chicaneaustralia.com.au\/products\/paragon-performance-2-piece-rotor-rings-355-32mm-215-9mm-pcd-12-6-4mm-mount-d55","provider":"Chicane Australia","version":"1.0","type":"link"}