{"product_id":"paragon-390x34mm-replacement-rotors-for-bmw-m4-gt4-front-pair","title":"Paragon 390x34mm Replacement Rotors for BMW M4 GT4 - Front Pair","description":"\u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eParagon 390x34mm Replacement Rotors for M4 GT4 - Front\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan id=\"docs-internal-guid-5fb478d5-7fff-3f19-419c-d306b61abc3f\" style=\"font-size: medium;\"\u003e\u003cstrong\u003eThese rotor rings (friction rings) are direct fit for the original \u003cstrong\u003e\u003cstrong\u003eequipped \u003c\/strong\u003e\u003c\/strong\u003ealuminum hats\u003cstrong\u003e on M4 GT4\u003c\/strong\u003e. Sold in pairs.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cstrong\u003eComes with new rotor attachment hardware kits (enough for 2 rotors) and assembly instructions for a complete rebuild.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e \u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eParagon Performance Rotor Ring offers superior braking and cooling efficiency optimized for track and race applications. It features directional ventilation vanes to create suction, turbulence, and guides cool air through the rotor for improved heat dissipation and increased resistance to cracking under harsh track condition.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan id=\"docs-internal-guid-2f418bb2-7fff-1224-8cb1-b789dee9a7ce\"\u003eMade of CM-250 special formulated high carbon alloy cast iron, it allows for an optimal bite, thermal characteristics, high-temperature strength and durability.\u003c\/span\u003e Rotor rings are heat treated to release stress in the rotor to avoid deformation and vibration then turned by state-of-the-art CBN\u003cspan id=\"docs-internal-guid-8aaed79d-7fff-28b5-b1db-39cfe8003417\"\u003e surface\u003c\/span\u003e machining to ensure better break-in with new brake pads.\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003eVibration is reduced as the rotor lateral run-out is kept within 0.03mm and well-balanced: variations are kept within 2 grams. \u003cspan id=\"docs-internal-guid-e5e03b38-7fff-f51e-a243-c146b45141dc\"\u003eAll rotor rings went through rigorous quality control procedures and inspections to ensure the rotor rings are fit for their purposes. \u003c\/span\u003eThe fully 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. Optimized the balance between mass and thermal capacity, our rotors improves overall handling by saving unsprung weight.\u003c\/span\u003e\u003c\/p\u003e \u003cp dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003e \u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli dir=\"ltr\"\u003e \u003cp dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eDirectional ventilation vanes for optimal cooling performance and increased resistance to cracking. Increased cooling efficiency for extreme race conditions\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli dir=\"ltr\"\u003e \u003cp dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eFully-floating 2-piece design\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli dir=\"ltr\"\u003e \u003cp dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eMinimizing brake fade \u0026amp; judder during extended sessions\u003c\/span\u003e\u003c\/p\u003e \u003c\/li\u003e \u003cli dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eRotor size: 390mm x 34mm\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eRadial depth (D): 62mm\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eSprint version\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cul\u003e \u003cli dir=\"ltr\"\u003e\u003cspan style=\"font-size: medium;\"\u003eRotor to hat mounting system: T-Bobbbin (Short) - 12-bolt\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: large;\"\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cstrong\u003eM4 GT4 front\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e*Replacement aluminum hats available\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cspan id=\"docs-internal-guid-e08091dc-7fff-1f15-d820-24e8acbc38c1\"\u003eParagon part number: \u003cspan\u003ePRK.046.390.340.24510.15.01.F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: medium;\"\u003eCross Reference:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003e\u003cspan style=\"font-size: medium;\"\u003eBMW \u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size: medium;\"\u003e34108419741\u003c\/span\u003e\u003cspan style=\"font-size: medium;\"\u003e \/ 34108419742\u003c\/span\u003e\n\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e \u003c\/p\u003e \u003cp\u003e\u003cspan style=\"font-size: medium;\"\u003e\u003cstrong\u003ePlease refer to our \u003cspan style=\"color: #0000ff;\"\u003e\u003ca href=\"https:\/\/paragonbrakes.com\/rotor-assembly-instructions\/\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eRotor Assembly Instructions\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e for torque specs and detailed instructions.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Paragon Brakes","offers":[{"title":"Default Title","offer_id":68012419023140,"sku":"PRK010145","price":725.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0882\/1411\/0500\/files\/paragon-restore-15418573324580.jpg?v=1793771876","url":"https:\/\/www.ttnmotorsports.com\/products\/paragon-390x34mm-replacement-rotors-for-bmw-m4-gt4-front-pair","provider":"TTN Motorsports ","version":"1.0","type":"link"}