{"product_id":"dynamite-friction-900-31089-disc-brake-rotor","title":"Dynamite Friction 900-31089 Disc Brake Rotor - Front","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 900-31089) 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 320i, 328i xDrive, and 430i Gran Coupe.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNominal thickness: 23.8 mm\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 22.4 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 312 mm\u003c\/li\u003e\n\u003cli\u003eInside diameter: 79 mm\u003c\/li\u003e\n\u003cli\u003eBolt hole diameter: 14.5 mm\u003c\/li\u003e\n\u003cli\u003eBolt hole quantity: 5\u003c\/li\u003e\n\u003cli\u003eHeight: 73.6 mm\u003c\/li\u003e\n\u003cli\u003eVented rotor design for improved cooling\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is constructed with a high-carbon alloy and features a GEOMET coating, which enhances corrosion resistance and extends rotor life. The vented design improves heat dissipation during braking, reducing the risk of brake fade under demanding conditions. With a nominal thickness of 23.8 mm and a discard thickness of 22.4 mm, this rotor maintains structural integrity and performance throughout its service life. The rotor measures 312 mm in outside diameter and includes five bolt holes with a diameter of 14.5 mm, ensuring compatibility with specific BMW wheel hubs.\u003c\/p\u003e\u003ch2\u003eDFC Hi-Carbon Alloy GEOMET Coated Rotor Product Line\u003c\/h2\u003e\u003cp\u003eThe DFC Hi-Carbon Alloy GEOMET Coated Rotor line by Dynamite Friction focuses on delivering rotors that combine high-carbon alloy metallurgy with advanced GEOMET coating technology. This combination provides enhanced durability and corrosion resistance, making it suitable for vehicles requiring reliable braking performance under varied driving conditions. The 900-31089 rotor is part of this line, designed specifically for BMW models requiring vented rotors with precise fitment specifications.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 220i, 228i, 230i (including xDrive variants)\u003c\/li\u003e\n\u003cli\u003eBMW 320i, 323i, 325i, 328d, 328i, 330i (including xDrive and GT variants)\u003c\/li\u003e\n\u003cli\u003eBMW 428i, 430i (including Gran Coupe and xDrive variants)\u003c\/li\u003e\n\u003cli\u003eBMW X1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis rotor is intended for use in disc brake systems on these models, providing consistent braking performance and fitment accuracy.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by This Rotor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake rotor warping due to 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 caused by uneven rotor wear\u003c\/li\u003e\n\u003cli\u003eVibration or pulsation during braking\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 22.4 mm before installation. Clean the rotor surface to remove any protective coating residue. Verify bolt hole alignment and torque bolts to manufacturer specifications. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Proper bedding-in of the rotor and pads will help achieve consistent stopping power.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction rotors, including the 900-31089, are manufactured to meet or exceed OEM standards for fit, form, and function. The GEOMET coating provides additional corrosion resistance to extend rotor life. Warranty details should be confirmed with the point of purchase or manufacturer documentation.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":43389653024949,"sku":"HBHR-900-31089","price":83.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_90031089_Fro.jpg?v=1774634604","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-900-31089-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}