{"product_id":"dynamite-friction-830-31157l-disc-brake-rotor-front-left","title":"Dynamite Friction 830-31157L Disc Brake Rotor - Front Left","description":"\u003ch2\u003eHigh-Performance Brake Rotor for BMW and Mini Models\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (Part Number 830-31157L) is engineered to provide reliable braking performance for select BMW and Mini vehicles. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDisc Type: Vented disc brake rotor with drilled and slotted surface\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 330 mm for optimal fit and performance\u003c\/li\u003e\n\u003cli\u003eNominal Thickness: 24 mm with a discard thickness of 22.4 mm\u003c\/li\u003e\n\u003cli\u003eDirectional surface finish with plain disc and Geospec silver grey hat finish\u003c\/li\u003e\n\u003cli\u003eRust resistant coating to extend rotor life\u003c\/li\u003e\n\u003cli\u003eBolt Hole Quantity: 5 with 16.6 mm diameter and 112 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eCenter Hole Diameter: 67 mm\u003c\/li\u003e\n\u003cli\u003eHeight: 45.4 mm\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 220i, 228i Gran Coupe, 228i xDrive Gran Coupe, Mini Cooper Countryman, X1, and X2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout the DFC Geoperformance Rotor - Drilled and Slotted Line\u003c\/h2\u003e\u003cp\u003eThe DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on delivering rotors with enhanced heat management and braking efficiency. Featuring a vented design combined with drilled holes and precision slots, these rotors help reduce brake fade and improve pad bite. The directional surface pattern is engineered to optimize water and debris evacuation, making it suitable for both street and light performance driving applications.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor (Part Number 830-31157L) is constructed with a vented design to improve airflow and heat dissipation during braking. The drilled and slotted surface helps maintain clean pad contact by channeling away dust, gases, and moisture. The rotor’s plain disc finish paired with a Geospec silver grey hat finish provides corrosion resistance and a durable appearance. With a nominal thickness of 24 mm and a discard thickness of 22.4 mm, this rotor meets strict specifications for safe and effective braking. The 5-bolt hole pattern with a 112 mm bolt circle diameter ensures precise fitment on compatible BMW and Mini models.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces brake fade during extended or aggressive braking\u003c\/li\u003e\n\u003cli\u003eImproves braking response and pad bite with slotted and drilled surface\u003c\/li\u003e\n\u003cli\u003eHelps prevent rotor warping by enhancing heat dissipation\u003c\/li\u003e\n\u003cli\u003eResists rust and corrosion for longer service life\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 220i, 228i Gran Coupe, 228i xDrive Gran Coupe, Mini Cooper Countryman, X1, and X2 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor is installed on vehicles with the correct 5-lug bolt pattern and 112 mm bolt circle diameter. The directional surface requires installation with the rotation direction matching the vehicle’s wheel rotation for optimal performance. Check rotor thickness before installation and replace if below the discard thickness of 22.4 mm. Use proper torque specifications for lug nuts to avoid rotor damage.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the DFC Geoperformance Rotor - Drilled and Slotted to meet or exceed OEM standards for fit, form, and function. The rotor includes a rust resistant coating to extend service life. Please refer to Dynamite Friction’s warranty policy for coverage details.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51801077612725,"sku":"HBHR-830-31157L","price":141.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_83031157L_Fro.jpg?v=1774642305","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-830-31157l-disc-brake-rotor-front-left","provider":"PartCatalog","version":"1.0","type":"link"}