{"product_id":"dynamite-friction-830-31089l-disc-brake-rotor-front-left","title":"Dynamite Friction 830-31089L 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 830-31089L) is engineered for precision braking performance on select BMW models. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for vehicles such as the BMW 320i, 328i xDrive, and 430i Gran Coupe.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDisc type: Vented disc brake rotor\u003c\/li\u003e\n\u003cli\u003eSurface finish: Slotted and drilled for improved heat and gas dissipation\u003c\/li\u003e\n\u003cli\u003eRust resistant coating for extended durability\u003c\/li\u003e\n\u003cli\u003eDirectional brake surface optimized for performance\u003c\/li\u003e\n\u003cli\u003eHat finish in Geospec silver grey for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 312 mm with 5 bolt holes (14.5 mm diameter)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 23.8 mm; discard thickness: 22.4 mm\u003c\/li\u003e\n\u003cli\u003eBolt circle diameter: 120 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDFC Geoperformance Rotor - Drilled and Slotted Product Line\u003c\/h2\u003e\u003cp\u003eThe DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on delivering rotors with enhanced thermal management and braking efficiency. Featuring a combination of drilled holes and precision slots, these rotors help reduce brake fade by allowing gases and heat to escape more effectively. The vented design further supports cooling, making this rotor suitable for BMW models requiring reliable stopping power under varied driving conditions.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is specifically designed for BMW vehicles including the 220i, 228i xDrive, 328d, 330i GT xDrive, and X1 among others. The rotor’s 312 mm outside diameter and 73.6 mm overall height ensure proper fitment and compatibility. The directional slotted and drilled surface improves pad bite and helps maintain consistent braking performance by minimizing heat buildup. The rotor’s hat is finished in Geospec silver grey, providing corrosion resistance and a clean appearance. Additionally, the rust resistant coating extends the rotor’s service life by protecting against environmental elements.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces brake fade during aggressive or prolonged braking\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to prevent rotor warping\u003c\/li\u003e\n\u003cli\u003eEnhances braking response and pad bite on BMW 320i and 328i xDrive models\u003c\/li\u003e\n\u003cli\u003eMinimizes rust and corrosion for longer rotor lifespan\u003c\/li\u003e\n\u003cli\u003eMaintains consistent braking performance in wet or dry conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor is installed on compatible BMW models listed in the fitment section. Verify the bolt hole pattern (5 holes, 14.5 mm diameter, 120 mm bolt circle) matches your vehicle’s hub. Clean the rotor surface before installation to remove any protective coatings or residues. Proper torque specifications should be followed to avoid rotor distortion. Directional rotors must be installed with the correct rotation direction for optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the 830-31089L rotor to meet OEM standards for fit, form, and function. The rust resistant coating and Geospec silver grey hat finish contribute to durability and corrosion resistance. While no specific warranty information is provided, this rotor is engineered for reliable performance on BMW vehicles including the 220i, 328i, and 430i Gran Coupe.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51801076564149,"sku":"HBHR-830-31089L","price":138.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_83031089L_Fro.jpg?v=1774642296","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-830-31089l-disc-brake-rotor-front-left","provider":"PartCatalog","version":"1.0","type":"link"}