{"product_id":"dynamite-friction-830-31070l-disc-brake-rotor-rear-left","title":"Dynamite Friction 830-31070L 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 830-31070L) is engineered for BMW models including the 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1. This vented disc brake rotor combines drilled and slotted surface features to enhance braking performance and heat dissipation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 830-31070L\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1\u003c\/li\u003e\n\u003cli\u003eDisc Finish: Plain with Geospec silver grey hat finish\u003c\/li\u003e\n\u003cli\u003eSurface Type: Directional drilled and slotted design\u003c\/li\u003e\n\u003cli\u003eVented rotor for improved heat management\u003c\/li\u003e\n\u003cli\u003eRust resistant coating for extended durability\u003c\/li\u003e\n\u003cli\u003eDimensions: 336 mm outside diameter, 67.2 mm overall height\u003c\/li\u003e\n\u003cli\u003eBolt Pattern: 5 lug holes with 14.8 mm diameter, 120 mm bolt circle diameter\u003c\/li\u003e\n\u003cli\u003eNominal Thickness: 22 mm; Discard Thickness: 20.4 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe DFC Geoperformance Rotor - Drilled and Slotted by Dynamite Friction is designed to meet the braking demands of various BMW models. Featuring a vented rotor construction, it allows for efficient heat dissipation during braking, reducing the risk of brake fade. The directional drilled and slotted surface improves water and debris evacuation, enhancing wet weather braking performance and pad bite. The rotor’s plain disc finish paired with a Geospec silver grey hat finish provides corrosion resistance and a clean appearance.\u003c\/p\u003e\u003cp\u003eWith a nominal thickness of 22 mm and a discard thickness of 20.4 mm, this rotor maintains structural integrity throughout its service life. The 5-lug bolt pattern with a 120 mm bolt circle diameter and 14.8 mm bolt hole diameter ensures precise fitment on compatible BMW models. The rust resistant coating further protects the rotor from environmental elements, extending its operational lifespan.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement rotor for worn or warped rotors on BMW 330i, 335i, and X1 models\u003c\/li\u003e\n\u003cli\u003eImproves braking performance in wet and dry conditions with drilled and slotted design\u003c\/li\u003e\n\u003cli\u003eReduces brake fade during aggressive driving or heavy braking scenarios\u003c\/li\u003e\n\u003cli\u003ePrevents rust and corrosion buildup for longer rotor life\u003c\/li\u003e\n\u003cli\u003eRestores proper rotor thickness and surface condition for consistent braking\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure rotor thickness is above discard thickness (20.4 mm) before installation\u003c\/li\u003e\n\u003cli\u003eClean rotor surface and hub mounting area to prevent uneven wear\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for 5-lug bolts with 14.8 mm diameter\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with specific BMW model and year before installation\u003c\/li\u003e\n\u003cli\u003eInspect brake pads for wear and replace if necessary to optimize performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction’s DFC Geoperformance Rotor line is manufactured to meet OEM specifications for fit, form, and function. The rust resistant coating and vented design contribute to durability and consistent braking performance. While no specific warranty information is provided, Dynamite Friction products are engineered for reliable service in demanding automotive applications.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51801076367541,"sku":"HBHR-830-31070L","price":130.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_83031070L_Fro.jpg?v=1774642294","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-830-31070l-disc-brake-rotor-rear-left","provider":"PartCatalog","version":"1.0","type":"link"}