{"product_id":"dynamite-friction-644-31118-disc-brake-rotor-rear","title":"Dynamite Friction 644-31118 Disc Brake Rotor - Rear","description":"\u003ch2\u003eOverview of Dynamite Friction DFC GEOSPEC Coated Rotor\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC GEOSPEC Coated Rotor - Dimpled and Slotted (part number 644-31118) is engineered for BMW 328i and 330i models. This vented disc brake rotor offers enhanced heat dissipation and consistent braking performance under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNominal thickness: 22 mm\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 20.4 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 324 mm\u003c\/li\u003e\n\u003cli\u003eInside diameter: 120 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: 67.2 mm\u003c\/li\u003e\n\u003cli\u003eVented rotor design for improved cooling\u003c\/li\u003e\n\u003cli\u003eDimpled and slotted surface for better pad bite and debris removal\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is designed specifically for BMW 328i and 330i vehicles, ensuring precise fitment and reliable braking performance. The rotor features a vented design that helps dissipate heat more effectively during braking, reducing the risk of brake fade. With a nominal thickness of 22 mm and a discard thickness of 20.4 mm, this rotor maintains structural integrity and safety throughout its service life. The 324 mm outside diameter and 120 mm inside diameter are optimized for the braking system of these BMW models. The rotor’s dimpled and slotted surface enhances pad contact, improves water and debris evacuation, and contributes to consistent stopping power.\u003c\/p\u003e\u003ch2\u003eDFC GEOSPEC Coated Rotor - Dimpled and Slotted Product Line\u003c\/h2\u003e\u003cp\u003eThe DFC GEOSPEC Coated Rotor - Dimpled and Slotted line by Dynamite Friction is designed to provide improved braking performance through advanced surface treatments. The coating helps resist corrosion, extending rotor life, while the dimpled and slotted design improves pad bite and heat dissipation. This product line is suitable for drivers seeking reliable, consistent braking performance tailored to specific vehicle applications like the BMW 328i and 330i.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 328i and 330i\u003c\/li\u003e\n\u003cli\u003eImproves braking response and reduces brake fade under heavy use\u003c\/li\u003e\n\u003cli\u003eHelps eliminate brake noise caused by uneven rotor surfaces\u003c\/li\u003e\n\u003cli\u003eAddresses rotor corrosion issues with protective coating\u003c\/li\u003e\n\u003cli\u003eEnhances braking performance in wet or debris-prone 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 328i or 330i models with a 5-bolt pattern and matching bolt hole diameter of 14.5 mm. Verify rotor thickness before installation; replace if below the discard thickness of 20.4 mm. Properly torque bolts to manufacturer specifications to avoid rotor warping. It is recommended to inspect brake pads and hardware during rotor replacement for optimal braking system performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction rotors undergo rigorous quality control to meet OEM standards for fitment and performance. The vented rotor design and coating contribute to durability and corrosion resistance. While no specific warranty information is provided, Dynamite Friction products are manufactured to maintain consistent braking performance and safety for BMW 328i and 330i vehicles.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51801066438837,"sku":"HBHR-644-31118","price":92.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_64431118_Fro.jpg?v=1774642245","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-644-31118-disc-brake-rotor-rear","provider":"PartCatalog","version":"1.0","type":"link"}