{"product_id":"ford-explorer-2020-2023-street-challenge-front-rfk640-02","title":"Rotora Street Challenge 6-Piston 380x35 Disc Front Big Brake Kit (2020-2023 Ford Explorer \/ Explorer ST) - RFK.640.02","description":"\u003ch4\u003eBigger Rotors, More Heat Capacity for the Explorer ST Front Axle\u003c\/h4\u003e\n\u003cp\u003eStep up the front brake performance on your 2020-2023 Ford Explorer ST with the RFK.640.02 Rotora Street Challenge Front Brake System. A 6-piston RF606 forged caliper paired with a larger 380x35mm 2-piece floating rotor means more swept area, more heat capacity, and better fade resistance during sustained hard braking compared to both the factory setup and the smaller RFK.640.01 option.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e6-piston RF606 forged aluminum caliper for consistent, high 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 RF606 caliper included\u003c\/li\u003e\n\u003cli\u003eImproved fade resistance over the factory front brake setup\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.640.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliper Type\u003c\/td\u003e\n\u003ctd\u003e6-piston RF606 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 RF606 6-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\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the RFK.640.02?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.02 is a Rotora Street Challenge front brake system for the 2020-2023 Ford Explorer ST, featuring a 6-piston RF606 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.640.01?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.02 uses a larger 380x35mm rotor compared to the 355x35mm rotor on the RFK.640.01, giving it more swept area and heat capacity.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat caliper colors are available?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RFK.640.02 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 RF606 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.640.02 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.640.02 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 RF606 6-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. 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