{"product_id":"dynamite-friction-830-31027l-disc-brake-rotor-front-left","title":"Dynamite Friction 830-31027L Disc Brake Rotor - Front Left","description":"\u003ch2\u003eOverview of Dynamite Friction DFC Geoperformance Rotor\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-31027L) is engineered for BMW models including the 318i, 320i, 323i, 325i, 328i, Z3, and Z4. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with BMW 318i, 318is, 318ti, 320i, 323Ci, 323i, 323is, 325i, 325is, 328i, 328is, Z3, and Z4 models\u003c\/li\u003e\n\u003cli\u003eDirectional slotted and drilled surface for improved brake pad bite and cooling\u003c\/li\u003e\n\u003cli\u003eVented rotor design with 286 mm outside diameter and 51.7 mm overall height\u003c\/li\u003e\n\u003cli\u003eRust resistant coating with Geospec silver grey hat finish for corrosion protection\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 22 mm and discard thickness of 20.4 mm for durability\u003c\/li\u003e\n\u003cli\u003eFive bolt holes with 15 mm diameter and 120 mm bolt circle diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis Dynamite Friction rotor is part of the DFC Geoperformance Rotor - Drilled and Slotted line, which focuses on delivering enhanced braking efficiency through advanced rotor surface design. The drilled and slotted surface helps to evacuate gases, dust, and water, reducing brake fade and maintaining consistent stopping power. The vented rotor construction improves heat dissipation during heavy braking, which is critical for maintaining rotor integrity and brake pad life.\u003c\/p\u003e\u003cp\u003eThe rotor's nominal thickness is 22 mm, with a discard thickness of 20.4 mm, ensuring a long service life before replacement is necessary. The rotor features a plain disc finish combined with a Geospec silver grey hat finish that provides rust resistance, helping to maintain appearance and performance over time. The 5-lug bolt pattern with 15 mm diameter holes and a 120 mm bolt circle diameter matches the specified BMW models precisely.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplaces worn or warped rotors on compatible BMW 3 Series and Z models\u003c\/li\u003e\n\u003cli\u003eAddresses brake fade caused by overheating during aggressive driving or towing\u003c\/li\u003e\n\u003cli\u003eImproves braking response in wet conditions by channeling water away from the rotor surface\u003c\/li\u003e\n\u003cli\u003eReduces brake dust buildup for cleaner wheel appearance\u003c\/li\u003e\n\u003cli\u003eHelps maintain consistent brake pad contact and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor thickness is measured before installation to confirm it meets or exceeds the discard thickness of 20.4 mm. The directional slotted and drilled surface requires correct orientation during installation to optimize performance. Verify the 5-lug bolt pattern and 120 mm bolt circle diameter match your vehicle specifications. Clean the rotor surface of any protective coatings or oils before mounting brake pads to ensure proper bedding.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the DFC Geoperformance Rotor - Drilled and Slotted to meet or exceed OEM specifications for fit, form, and function. The rust resistant coating and vented design contribute to long-term durability. Warranty details are provided by the manufacturer and should be confirmed at the time of purchase.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51801075744949,"sku":"HBHR-830-31027L","price":107.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_83031027L_Fro.jpg?v=1774642289","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-830-31027l-disc-brake-rotor-front-left","provider":"PartCatalog","version":"1.0","type":"link"}