{"product_id":"girodisc-15-20-alfa-romeo-4c-slotted-rear-rotors","title":"GiroDisc 15-20 Alfa Romeo 4C Slotted Rear Rotors","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eA2-078\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGiroDisc 2015-2020 Alfa Romeo 4C Slotted Rear Rotors\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGiroDisc slotted rear rotors deliver reliable braking performance for 2015-2020 Alfa Romeo 4C models including Coupe and Spider. These two-piece rotors replace OEM parts directly with a lightweight aluminum hat and high carbon iron ring for lower unsprung weight and effective heat management. Drivers experience reduced fade during spirited driving or track sessions.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Piece Construction:\u003c\/strong\u003e Forged 6061-T6 aluminum hat bolts to 310mm x 22mm high carbon cast iron slotted ring reducing weight by 4 lbs per rotor versus stock while isolating heat from hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlotted Friction Surface:\u003c\/strong\u003e 72 internal cooling vanes and external slots evacuate gases water and debris for improved pad bite consistent performance and minimal fade under load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Carbon Alloy Ring:\u003c\/strong\u003e Resists thermal cracking and warping at temperatures exceeding 1000°F ensuring durability on street or track.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented Floating Design:\u003c\/strong\u003e Retention screws allow thermal expansion without stress on mounting surfaces maintaining precise rotor-to-hat alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Fit:\u003c\/strong\u003e Matches OEM 5x108 bolt pattern and 145mm hat OD no modifications needed uses factory calipers pads and hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRotors sold as pair (LH and RH) for complete rear axle upgrade.\u003c\/li\u003e\n\u003cli\u003ePair with GiroDisc pads for maximum performance bedding required before track use.\u003c\/li\u003e\n\u003cli\u003eSpecial order item expect 3-5 business day processing time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eTorque hat screws to 20 ft-lbs during assembly use thread locker.\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM calipers hardware and pad shims no adapters required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eAlfa Romeo\u003c\/td\u003e\n\u003ctd\u003e4C\u003c\/td\u003e\n\u003ctd\u003eCoupe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2020\u003c\/td\u003e\n\u003ctd\u003eAlfa Romeo\u003c\/td\u003e\n\u003ctd\u003e4C Spider\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose GiroDisc?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered and machined in the USA with racing-proven designs used in SCCA and endurance series.\u003c\/li\u003e\n\u003cli\u003ePrecise tolerances and balanced rotors minimize vibration for smooth operation.\u003c\/li\u003e\n\u003cli\u003eFocused on lightweight high-performance braking components for sports cars.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will these rotors fit my 2018 Alfa Romeo 4C Spider?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes A2-078 fits all 2015-2020 4C Coupe and Spider models as direct OEM replacement rear rotors 310x22mm size.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material is used in the rotor ring?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e High carbon 72-vane cast iron for strength and heat resistance paired with corrosion-resistant aluminum hat.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and bedding process?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Lifetime warranty against hat separation or warping when used with compatible pads follow GiroDisc bedding procedure of 10-10-10 stops for optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or FedEx Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e Special order ships within 3-5 business days\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Custom protective box 16 x 16 x 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 24 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GiroDisc","offers":[{"title":"Default Title","offer_id":42066059755599,"sku":"GIRA2-078","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/girodisc-15-20-alfa-romeo-4c-slotted-rear-rotors-girodisc.jpg?v=1775938061","url":"https:\/\/www.blackopsautoworks.com\/products\/girodisc-15-20-alfa-romeo-4c-slotted-rear-rotors","provider":"Black Ops Auto Works","version":"1.0","type":"link"}