{"product_id":"stoptech-128-34124r-disc-brake-rotor","title":"Stoptech 128.34124R Disc Brake Rotor - Front Right","description":"\u003ch2\u003eStopTech Sport Cross-Drilled Disc Brake Rotors Overview\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.34124R) are engineered for BMW models including the 535d, 535i, 640i, and ActiveHybrid 5 series. Designed to enhance braking performance, these rotors feature a vented and cross-drilled surface for improved heat dissipation and consistent stopping power.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCross-drilled surface type for enhanced cooling and brake pad bite\u003c\/li\u003e\n\u003cli\u003eVented rotor design to reduce heat buildup during heavy braking\u003c\/li\u003e\n\u003cli\u003eCoated hat finish to resist corrosion and extend rotor life\u003c\/li\u003e\n\u003cli\u003eFloating disc mounting for improved rotor alignment and reduced warping\u003c\/li\u003e\n\u003cli\u003eCompatible with BMW 535d, 535i, 640i, and ActiveHybrid 5 models\u003c\/li\u003e\n\u003cli\u003eNominal thickness of 30.000 mm and discard thickness of 28.400 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter of 348.000 mm (13.701 inches) for precise fitment\u003c\/li\u003e\n\u003cli\u003e5 lug holes with a 120.000 mm bolt circle diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAbout StopTech Sport Cross-Drilled Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance for sport and luxury vehicles. Featuring cross-drilled rotors with vented construction, this product line improves heat dissipation and reduces brake fade under demanding driving conditions. The coated hat finish offers corrosion resistance, making these rotors suitable for both daily driving and spirited use. Part number 128.34124R is a precise fit for select BMW models, ensuring reliable braking performance and durability.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThese disc brake rotors are vented to allow air to flow through the rotor, which helps dissipate heat generated during braking. The cross-drilled surface improves pad bite and helps evacuate gases and debris from the braking surface. The floating disc mounting design allows for slight movement between the rotor and hat, reducing the risk of warping and improving overall rotor longevity. The coated hat finish protects the rotor’s central hub from rust and corrosion, maintaining structural integrity over time. With a nominal thickness of 30.000 mm and a discard thickness of 28.400 mm, these rotors meet strict specifications for safe and effective braking. The rotor’s outside diameter of 348.000 mm and 5-lug bolt pattern with a 120.000 mm bolt circle diameter ensure compatibility with the specified BMW models.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eImproves braking performance on BMW 535d, 535i, 640i, and ActiveHybrid 5 vehicles\u003c\/li\u003e\n\u003cli\u003eReduces brake fade during aggressive or repeated braking\u003c\/li\u003e\n\u003cli\u003eMinimizes rotor warping and vibration through floating disc design\u003c\/li\u003e\n\u003cli\u003eEnhances heat dissipation to prevent premature brake component wear\u003c\/li\u003e\n\u003cli\u003eProtects against corrosion with coated hat finish for longer service life\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 (28.400 mm) before installation\u003c\/li\u003e\n\u003cli\u003eVerify compatibility with your specific BMW model and year\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications for the 5-lug mounting bolts on the 120 mm bolt circle\u003c\/li\u003e\n\u003cli\u003eInspect brake pads and calipers during rotor replacement for optimal performance\u003c\/li\u003e\n\u003cli\u003eFollow manufacturer guidelines for bedding-in new rotors and pads\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 OEM standards for fit, form, and function. The rotors undergo rigorous quality control to ensure durability and consistent braking performance. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.\u003c\/p\u003e","brand":"Stoptech","offers":[{"title":"Default Title","offer_id":44573330342069,"sku":"FLMN-128.34124R","price":316.63,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12834124R_Fro_0b135421-16d5-40a3-b4f1-7b86214eb98e.jpg?v=1774639414","url":"https:\/\/www.partcatalog.com\/products\/stoptech-128-34124r-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}