{"product_id":"dynamite-friction-900-31109-disc-brake-rotor-rear","title":"Dynamite Friction 900-31109 Disc Brake Rotor - Rear","description":"\u003ch2\u003eOverview of Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor (part number 900-31109) is engineered for precision braking performance on select BMW models. Designed as a vented disc brake rotor, it offers reliable heat dissipation and consistent stopping power for vehicles such as the BMW 328i, 335i, and 440i series.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVented rotor design for improved heat management\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 20 mm with a discard thickness of 18.4 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter measures 330 mm for optimal fitment\u003c\/li\u003e\n\u003cli\u003eFive bolt holes with a diameter of 16.8 mm\u003c\/li\u003e\n\u003cli\u003eHeight of 66.4 mm and inside diameter of 75 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is part of the DFC Hi-Carbon Alloy GEOMET Coated Rotor line, which incorporates a high-carbon alloy construction to enhance rotor durability and reduce brake noise. The GEOMET coating provides corrosion resistance, extending the rotor's service life under various driving conditions. The vented design facilitates efficient heat dissipation, reducing the risk of brake fade during extended use.\u003c\/p\u003e\u003cp\u003eWith a nominal thickness of 20 mm and a discard thickness of 18.4 mm, this rotor maintains structural integrity while allowing for safe wear limits. The 330 mm outside diameter and 75 mm inside diameter ensure compatibility with specific BMW brake assemblies. The rotor features five bolt holes, each 16.8 mm in diameter, matching the bolt pattern of compatible BMW models.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 328i and 328i xDrive\u003c\/li\u003e\n\u003cli\u003eBMW 330i and 330i xDrive\u003c\/li\u003e\n\u003cli\u003eBMW 335i, 335i xDrive, and 335i GT xDrive\u003c\/li\u003e\n\u003cli\u003eBMW 340i, 340i xDrive, and 340i GT xDrive\u003c\/li\u003e\n\u003cli\u003eBMW 428i Gran Coupe and 428i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003eBMW 430i, 430i xDrive, and 430i Gran Coupe variants\u003c\/li\u003e\n\u003cli\u003eBMW 435i and 435i xDrive Gran Coupe models\u003c\/li\u003e\n\u003cli\u003eBMW 440i, 440i xDrive, and 440i Gran Coupe variants\u003c\/li\u003e\n\u003cli\u003eBMW ActiveHybrid 3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Rotor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake rotor warping due to excessive heat buildup\u003c\/li\u003e\n\u003cli\u003eCorrosion and rust on rotor surfaces\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency from worn or thin rotors\u003c\/li\u003e\n\u003cli\u003eBrake noise and vibration caused by uneven rotor wear\u003c\/li\u003e\n\u003cli\u003eCompatibility issues with OEM brake components on specified BMW models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor thickness is above the discard thickness of 18.4 mm before installation. Properly clean the rotor surface to remove any protective coatings or contaminants. Verify bolt hole alignment with the vehicle’s hub assembly, matching the five-hole pattern with 16.8 mm diameter holes. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Follow manufacturer torque specifications when securing the rotor.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Hi-Carbon Alloy GEOMET Coated Rotor is manufactured to meet or exceed OEM standards for fit, form, and function. The high-carbon alloy construction combined with the GEOMET coating ensures durability and corrosion resistance. 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":51726980907189,"sku":"HBHR-900-31109","price":85.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_90031109_Fro.jpg?v=1774640299","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-900-31109-disc-brake-rotor-rear","provider":"PartCatalog","version":"1.0","type":"link"}