{"product_id":"dynamite-friction-830-31117l-disc-brake-rotor-rear-left","title":"Dynamite Friction 830-31117L Disc Brake Rotor - Rear 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 830-31117L) 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 xDrive and 330i GT xDrive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eNominal thickness: 20 mm with a discard thickness of 18.4 mm\u003c\/li\u003e\n\u003cli\u003eVented disc type with drilled and slotted surface for improved cooling\u003c\/li\u003e\n\u003cli\u003eDirectional brake surface optimized for performance and debris removal\u003c\/li\u003e\n\u003cli\u003eRust resistant coating to extend rotor life\u003c\/li\u003e\n\u003cli\u003eGeospec silver grey hat finish for corrosion resistance and aesthetics\u003c\/li\u003e\n\u003cli\u003e5 bolt holes with 16.8 mm diameter and 120 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eOverall diameter of 300 mm and height of 66.3 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor is specifically designed for BMW vehicles requiring a 300 mm outside diameter and a 75.05 mm center hole diameter. The vented rotor construction allows for better heat management during braking, reducing the risk of brake fade under demanding conditions. The drilled and slotted surface type improves water and gas evacuation, enhancing braking performance in wet or high-temperature environments. The directional design ensures optimal contact with brake pads, improving stopping power and pad life.\u003c\/p\u003e\u003cp\u003eThe rotor’s nominal thickness of 20 mm and discard thickness of 18.4 mm provide a clear service life indicator, helping maintain safe braking performance. The rust resistant coating and Geospec silver grey hat finish protect against corrosion, which is especially beneficial for vehicles exposed to harsh weather or road salt.\u003c\/p\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 cooling and debris removal capabilities. This product line combines drilled holes and precision slots with vented rotor design to improve braking efficiency and rotor longevity. The directional surface pattern is engineered to optimize pad contact and reduce brake dust buildup, making it suitable for performance-oriented BMW models.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 320i xDrive\u003c\/li\u003e\n\u003cli\u003eBMW 325xi\u003c\/li\u003e\n\u003cli\u003eBMW 328d xDrive, 328i, 328i GT xDrive, 328i xDrive, 328xi\u003c\/li\u003e\n\u003cli\u003eBMW 330e, 330i, 330i GT xDrive, 330i xDrive\u003c\/li\u003e\n\u003cli\u003eBMW 420i, 428i, 428i Gran Coupe, 428i xDrive, 428i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003eBMW 430i, 430i Gran Coupe, 430i xDrive, 430i xDrive Gran Coupe\u003c\/li\u003e\n\u003cli\u003eBMW X1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon Issues Addressed by This Rotor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBrake fade caused by excessive heat buildup\u003c\/li\u003e\n\u003cli\u003eReduced braking efficiency in wet conditions\u003c\/li\u003e\n\u003cli\u003eCorrosion and rust on rotor surfaces\u003c\/li\u003e\n\u003cli\u003eUneven pad wear due to poor rotor surface design\u003c\/li\u003e\n\u003cli\u003eBrake noise and vibration from warped or worn rotors\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 above. Verify the bolt hole pattern matches the vehicle’s hub (5 holes, 16.8 mm diameter, 120 mm bolt circle). Clean the rotor surface before installation to remove any protective coatings or residues. Use proper torque specifications for lug nuts to avoid rotor warping. It is recommended to replace brake pads when installing new rotors to maintain optimal braking performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the 830-31117L rotor to meet strict quality standards for durability and performance. The rust resistant coating and precision machining ensure consistent braking under various driving conditions. Warranty details are provided by the manufacturer and should be reviewed prior to installation.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51801077153973,"sku":"HBHR-830-31117L","price":111.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_83031117L_Fro.jpg?v=1774642300","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-830-31117l-disc-brake-rotor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}