{"product_id":"dynamite-friction-830-80072l-disc-brake-rotor-rear-left","title":"Dynamite Friction 830-80072L Disc Brake Rotor - Rear Left","description":"\u003ch2\u003eRear Left Drilled and Slotted Rotor for MX-5 Miata\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted, part number 830-80072L, is a rear left disc brake rotor built for specific Mazda MX-5 Miata and Fiat 124 Spider applications. It combines a slotted X drilled surface with a rust resistant coating and Geospec Silver Grey hat finish for a clean, service-ready appearance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2016-2025 Mazda MX-5 Miata, rear left.\u003c\/li\u003e\n\u003cli\u003eFits 2017-2020 Fiat 124 Spider, rear left.\u003c\/li\u003e\n\u003cli\u003eSlotted X drilled brake surface for directional braking performance.\u003c\/li\u003e\n\u003cli\u003eRust resistant coating helps protect exposed surfaces.\u003c\/li\u003e\n\u003cli\u003ePlain disc finish with Geospec Silver Grey hat finish.\u003c\/li\u003e\n\u003cli\u003eSolid rotor design with 280 mm outside diameter.\u003c\/li\u003e\n\u003cli\u003e4-bolt, 4-lug pattern with 100 mm bolt circle diameter.\u003c\/li\u003e\n\u003cli\u003eCenter hole diameter: 55 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDFC Geoperformance Rotor Line\u003c\/h2\u003e\u003cp\u003eThe DFC Geoperformance Rotor line focuses on application-specific brake rotors with drilled and slotted surfaces. For the Mazda MX-5 Miata and Fiat 124 Spider rear left position, part number 830-80072L uses a directional braking surface and corrosion-resistant coating to support consistent rotor appearance and service fitment.\u003c\/p\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003ePart number 830-80072L is a Dynamite Friction disc brake rotor engineered for the rear left position on the Mazda MX-5 Miata and Fiat 124 Spider. The rotor measures 280 mm in outside diameter, 35.85 mm in overall height, and uses a solid construction with 9.5 mm nominal thickness and 7.5 mm discard thickness. Its slotted X drilled surface is paired with a directional brake face, while the Geospec Silver Grey hat finish and rust resistant coating help protect the rotor’s exposed areas.\u003c\/p\u003e\u003cp\u003eThis rotor is a direct-fit option for 2016-2025 Mazda MX-5 Miata rear left and 2017-2020 Fiat 124 Spider rear left applications. Part number 830-80072L is built around the specified bolt pattern, stud\/lug hole diameter, and center bore dimensions for those vehicles.\u003c\/p\u003e\u003ch2\u003eCommon Reasons to Replace\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake pulsation from rotor wear or uneven surface condition.\u003c\/li\u003e\n\u003cli\u003eVisible scoring, grooves, or heat checking on the braking surface.\u003c\/li\u003e\n\u003cli\u003eCorrosion on the rotor hat or exposed metal surfaces.\u003c\/li\u003e\n\u003cli\u003eReduced braking consistency from a worn rear rotor.\u003c\/li\u003e\n\u003cli\u003eService replacement for a rear left rotor on the listed Mazda MX-5 Miata or Fiat 124 Spider applications.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify rear left fitment by matching the vehicle year, make, model, and rotor dimensions before installation. Confirm the 4-bolt, 100 mm bolt circle, 55 mm center hole, and 13.3 mm stud\/lug hole diameter against the existing brake setup. Because this rotor uses a directional brake surface, install it in the correct orientation for the rear left position.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction supplies this DFC Geoperformance Rotor with a rust resistant coating and application-specific dimensions for the listed vehicles. Part number 830-80072L is built to match the confirmed rear left fitment for the Mazda MX-5 Miata and Fiat 124 Spider applications.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":52734118002869,"sku":"HBHR-830-80072L","price":113.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_83080072L_Fro.jpg?v=1782279401","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-830-80072l-disc-brake-rotor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}