{"product_id":"dynamite-friction-631-31070r-disc-brake-rotor-rear-right","title":"Dynamite Friction 631-31070R Disc Brake Rotor - Rear Right","description":"\u003ch2\u003eOverview of Dynamite Friction DFC Brake Rotor\u003c\/h2\u003e\u003cp\u003eThe Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-31070R) is engineered for BMW models including the 325i, 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 631-31070R\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 325i, 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1\u003c\/li\u003e\n\u003cli\u003eDisc Finish: Plain with zinc silver hat finish\u003c\/li\u003e\n\u003cli\u003eSurface Type: Directional slotted and drilled\u003c\/li\u003e\n\u003cli\u003eVented rotor design for improved cooling\u003c\/li\u003e\n\u003cli\u003eRust resistant coating applied\u003c\/li\u003e\n\u003cli\u003eNominal Thickness: 22 mm; Discard Thickness: 20.4 mm\u003c\/li\u003e\n\u003cli\u003eOutside Diameter: 336 mm; Overall Height: 67.2 mm\u003c\/li\u003e\n\u003cli\u003eBolt Hole Quantity: 5; Bolt Circle Diameter: 120 mm\u003c\/li\u003e\n\u003cli\u003eCenter Hole Diameter: 75 mm; Bolt Hole Diameter: 14.8 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction is designed to meet the specific braking requirements of select BMW vehicles. Its vented rotor construction allows for efficient heat dissipation during braking, reducing the risk of brake fade under demanding conditions. The directional slotted and drilled surface improves water and debris evacuation, enhancing wet weather braking performance and maintaining consistent pad contact. The rotor features a plain disc finish combined with a zinc silver hat finish that provides corrosion resistance, extending the rotor's service life. With a nominal thickness of 22 mm and a discard thickness of 20.4 mm, this rotor maintains structural integrity and safety standards throughout its lifespan.\u003c\/p\u003e\u003ch2\u003eDFC Brake Rotor Product Line Features\u003c\/h2\u003e\u003cp\u003eThe DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced surface designs for improved braking efficiency. The drilled and slotted pattern is directional, which means it is optimized for specific rotation direction to maximize performance. This product line incorporates rust-resistant coatings and zinc silver hats to protect against corrosion, making it suitable for vehicles exposed to various driving conditions. This rotor line is engineered to provide reliable stopping power while maintaining durability for BMW models listed.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 3 Series and X1 models\u003c\/li\u003e\n\u003cli\u003eImproves braking performance in wet or humid conditions by channeling water away\u003c\/li\u003e\n\u003cli\u003eReduces brake fade during aggressive or repeated braking\u003c\/li\u003e\n\u003cli\u003eAddresses rotor corrosion issues with rust-resistant coating\u003c\/li\u003e\n\u003cli\u003eMaintains consistent brake pad contact through slotted and drilled surface design\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eEnsure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation direction. Verify bolt hole alignment with the 5-lug, 120 mm bolt circle pattern. Check rotor thickness before installation to confirm it meets or exceeds the discard thickness of 20.4 mm. Clean the rotor surface to remove any protective coatings or residues before mounting brake pads. Proper torque specifications should be followed for all lug nuts to ensure safe and secure installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eDynamite Friction manufactures the 631-31070R rotor to meet OEM specifications for fitment and performance on BMW 325i, 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1 models. The rotor includes a rust-resistant coating and zinc silver hat finish to enhance durability. While specific warranty details are not provided, Dynamite Friction products are designed to comply with industry standards for safety and reliability.\u003c\/p\u003e","brand":"Dynamite Friction","offers":[{"title":"Default Title","offer_id":51794115494069,"sku":"HBHR-631-31070R","price":105.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DF_63131070R_Fro.jpg?v=1774641366","url":"https:\/\/www.partcatalog.com\/products\/dynamite-friction-631-31070r-disc-brake-rotor-rear-right","provider":"PartCatalog","version":"1.0","type":"link"}