{"product_id":"stoptech-128-34070l-disc-brake-rotor","title":"Stoptech 128.34070L Disc Brake Rotor - Front Left","description":"\u003ch2\u003eStopTech Sport Cross-Drilled Disc Brake Rotors Overview\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotor (Part Number 128.34070L) is engineered for BMW models including the 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, 535i xDrive, and 535xi. Designed to enhance braking performance, this rotor features a vented, cross-drilled surface to improve heat dissipation and reduce brake fade under demanding conditions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCross-drilled surface for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eVented rotor design to maintain optimal operating temperatures\u003c\/li\u003e\n\u003cli\u003eCoated hat finish for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eFloating disc mounting for better rotor alignment\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 5 Series models listed in fitment\u003c\/li\u003e\n\u003cli\u003eOverall diameter: 324 mm (12.756 inches)\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 30.000 mm (1.181 inches)\u003c\/li\u003e\n\u003cli\u003eMounting bolt hole circle diameter: 120 mm (4.724 inches) with 5 lug holes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eStopTech Sport Cross-Drilled Disc Brake Rotors Product Line\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through advanced rotor surface technology. The cross-drilled pattern helps to evacuate gases and debris from the braking surface, while the vented design improves airflow to reduce heat buildup. This product line is suitable for drivers seeking improved brake response and durability on BMW vehicles such as the 525i and 535i xDrive.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThis disc brake rotor features a vented design with straight vanes to optimize cooling efficiency. The rotor has a coated hat finish to resist corrosion and extend service life. The floating disc mounting system allows for slight movement between the rotor and hub, reducing stress and improving rotor alignment. The rotor’s overall height measures 77.2 mm (3.039 inches), with a center hole diameter of 79 mm (3.110 inches). It includes one miscellaneous hole and is designed without ABS tone rings or bearings.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces brake fade during high-performance or spirited driving\u003c\/li\u003e\n\u003cli\u003eImproves heat dissipation to prevent rotor warping\u003c\/li\u003e\n\u003cli\u003eMinimizes brake dust and gas buildup on the rotor surface\u003c\/li\u003e\n\u003cli\u003eEnhances braking consistency for BMW 5 Series models listed\u003c\/li\u003e\n\u003cli\u003eProvides corrosion resistance for longer rotor lifespan\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure compatibility with BMW 525i, 525xi, 528i, 528i xDrive, 528xi, 530i, 530xi, 535i xDrive, and 535xi models\u003c\/li\u003e\n\u003cli\u003eInspect hub and mounting surfaces for cleanliness before installation\u003c\/li\u003e\n\u003cli\u003eTorque mounting bolts to manufacturer specifications\u003c\/li\u003e\n\u003cli\u003eCheck rotor thickness and discard thickness limits before installation (Nominal thickness: 30.000 mm, Discard thickness: 28.400 mm)\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended for optimal performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eStopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The coated hat finish provides corrosion resistance to extend rotor life. Please refer to StopTech’s official warranty policy for coverage details related to defects and workmanship.\u003c\/p\u003e","brand":"Stoptech","offers":[{"title":"Default Title","offer_id":44573327622325,"sku":"FLMN-128.34070L","price":231.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12834070L_Fro.jpg?v=1774639407","url":"https:\/\/www.partcatalog.com\/products\/stoptech-128-34070l-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}