{"product_id":"ford-explorer-2020-2023-street-challenge-front-rfk640-03","title":"Ford Explorer 2020-2023 Street Challenge Front Brake System","description":"\u003ch4\u003eMaximum Clamp Force for the Most Demanding Explorer ST Builds\u003c\/h4\u003e\n\u003cp\u003eThe RFK.640.03 Rotora Street Challenge Front Brake System is built for 2020-2023 Ford Explorer ST owners who demand maximum front braking performance. An 8-piston RF806 forged caliper paired with a 380x35mm 2-piece floating rotor delivers exceptional clamping force and heat management for the Explorer ST builds that push hardest.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e8-piston RF806 forged aluminum caliper for maximum clamping force\u003c\/li\u003e\n\u003cli\u003e380x35mm 2-piece floating rotor for increased swept area and heat capacity\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on fitment for the front axle, no permanent modification required\u003c\/li\u003e\n\u003cli\u003eAvailable in 10 caliper finishes including Natural Anodize (Zinc)\u003c\/li\u003e\n\u003cli\u003eSlotted or Drilled rotor face options to match braking preference\u003c\/li\u003e\n\u003cli\u003eStainless steel braided brake lines included for firmer pedal feel\u003c\/li\u003e\n\u003cli\u003ePerformance brake pads matched to the RF806 caliper included\u003c\/li\u003e\n\u003cli\u003eBuilt for the most demanding street and track driving\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020-2023\u003c\/td\u003e\n\u003ctd\u003eFord\u003c\/td\u003e\n\u003ctd\u003eExplorer\u003c\/td\u003e\n\u003ctd\u003eST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003eRFK.640.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper Type\u003c\/td\u003e\n\u003ctd\u003e8-piston RF806 forged aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Size\u003c\/td\u003e\n\u003ctd\u003e380x35mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor Type\u003c\/td\u003e\n\u003ctd\u003e2-piece floating disc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish Options\u003c\/td\u003e\n\u003ctd\u003e10 caliper colors, Slotted or Drilled rotor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003e2020-2023 Ford Explorer ST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eManufacturer limited warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2x RF806 8-piston forged aluminum calipers\u003c\/li\u003e\n\u003cli\u003e2x 380x35mm 2-piece floating rotors\u003c\/li\u003e\n\u003cli\u003eStainless steel braided brake lines\u003c\/li\u003e\n\u003cli\u003eMounting brackets and hardware\u003c\/li\u003e\n\u003cli\u003ePerformance brake pads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAbout Rotora\u003c\/h4\u003e\n\u003cp\u003eRotora designs and manufactures big brake kits for street and track enthusiasts, engineering forged aluminum calipers and 2-piece rotors that deliver consistent stopping power under demanding conditions.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the RFK.640.03?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.03 is a Rotora Street Challenge front brake system for the 2020-2023 Ford Explorer ST, featuring an 8-piston RF806 forged aluminum caliper and a 380x35mm 2-piece floating rotor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does this kit differ from the RFK.640.02?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.03 uses an 8-piston RF806 caliper compared to the 6-piston RF606 on the RFK.640.02, delivering greater clamping force with the same 380x35mm rotor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat caliper colors are available?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.03 is available in 10 caliper finishes, including Red, Dark Metallic Blue, Silver, Gloss Black, Green, Orange, Light Metallic Blue, White, Black Hard-Anodize Finish, Yellow, and Natural Anodize (Zinc).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between Slotted and Drilled rotors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSlotted rotors clear gas and debris from the pad surface, while Drilled rotors add additional cooling channels through the rotor face. Both are available for this kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this kit include brake pads?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, performance brake pads matched to the RF806 caliper are included with this kit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this a front or rear brake system?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.03 is a front brake system. A matching rear system is available separately for the Explorer ST.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill I need to modify my Explorer to install this kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this kit is designed for direct bolt-on installation on the front axle without permanent modification.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the rotor construction on this kit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.03 uses a 380x35mm 2-piece floating rotor design for reduced rotational weight and improved heat dissipation.\u003c\/p\u003e\n\u003ch4\u003eInstall Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eLift the vehicle and secure it on jack stands, then remove the front wheels.\u003c\/li\u003e\n\u003cli\u003eRemove the factory front calipers and disconnect the brake lines.\u003c\/li\u003e\n\u003cli\u003eRemove the factory front rotors and brake hardware.\u003c\/li\u003e\n\u003cli\u003eInstall the new 380x35mm 2-piece floating rotors onto the front hubs.\u003c\/li\u003e\n\u003cli\u003eMount the RF806 8-piston calipers using the supplied brackets and hardware.\u003c\/li\u003e\n\u003cli\u003eInstall the included performance brake pads into the calipers.\u003c\/li\u003e\n\u003cli\u003eConnect the new stainless steel braided brake lines and torque all fittings.\u003c\/li\u003e\n\u003cli\u003eBleed the brake system thoroughly and check for leaks.\u003c\/li\u003e\n\u003cli\u003eReinstall the wheels, torque to spec, and bed in the new brakes before hard driving.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Rotora","offers":[{"title":"Natural-Anodize Finish \/ Slotted","offer_id":40645324537935,"sku":"RFK.640.03-Z-S","price":4595.0,"currency_code":"USD","in_stock":true},{"title":"Natural-Anodize Finish \/ Drilled","offer_id":40645324570703,"sku":"RFK.640.03-Z-X","price":4595.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ Slotted","offer_id":40645323882575,"sku":"RFK.640.03-A-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Red \/ Drilled","offer_id":40645323915343,"sku":"RFK.640.03-A-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Orange \/ Slotted","offer_id":40645324210255,"sku":"RFK.640.03-K-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Orange \/ Drilled","offer_id":40645324243023,"sku":"RFK.640.03-K-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Slotted","offer_id":40645324472399,"sku":"RFK.640.03-Y-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Yellow \/ Drilled","offer_id":40645324505167,"sku":"RFK.640.03-Y-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Green \/ Slotted","offer_id":40645324144719,"sku":"RFK.640.03-H-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Green \/ Drilled","offer_id":40645324177487,"sku":"RFK.640.03-H-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Light Metallic Blue \/ Slotted","offer_id":40645324275791,"sku":"RFK.640.03-M-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Light Metallic Blue \/ Drilled","offer_id":40645324308559,"sku":"RFK.640.03-M-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Dark Metallic Blue \/ Slotted","offer_id":40645323948111,"sku":"RFK.640.03-B-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Dark Metallic Blue \/ Drilled","offer_id":40645323980879,"sku":"RFK.640.03-B-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ Slotted","offer_id":40645324079183,"sku":"RFK.640.03-G-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Gloss Black \/ Drilled","offer_id":40645324111951,"sku":"RFK.640.03-G-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Slotted","offer_id":40645324013647,"sku":"RFK.640.03-F-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"Silver \/ Drilled","offer_id":40645324046415,"sku":"RFK.640.03-F-X","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"White \/ Slotted","offer_id":40645324341327,"sku":"RFK.640.03-W-S","price":4395.0,"currency_code":"USD","in_stock":true},{"title":"White \/ Drilled","offer_id":40645324374095,"sku":"RFK.640.03-W-X","price":4395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/rotora-trx-rear-street-challenge-brake-system-zinc_4db72e7f-971e-460f-b100-2fb501a53fc7.webp?v=1784840155","url":"https:\/\/www.blackopsautoworks.com\/products\/ford-explorer-2020-2023-street-challenge-front-rfk640-03","provider":"Black Ops Auto Works","version":"1.0","type":"link"}