{"product_id":"stoptech-128-34091r-disc-brake-rotor","title":"Stoptech 128.34091R Disc Brake Rotor - Rear Right","description":"\u003ch2\u003eOverview of StopTech Sport Cross-Drilled Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.34091R) are engineered for BMW models including the 130i, 325xi, 328i, 328i xDrive, 328xi, and X1. These rotors provide reliable braking performance with a vented design and cross-drilled surface to enhance heat dissipation and reduce brake fade.\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\u003eCompatible with BMW 130i, 325xi, 328i, 328i xDrive, 328xi, and X1\u003c\/li\u003e\n\u003cli\u003ePart Number: 128.34091R\u003c\/li\u003e\n\u003cli\u003eNominal thickness: 0.787 inches (20.000 mm)\u003c\/li\u003e\n\u003cli\u003eDiscard thickness: 0.724 inches (18.400 mm)\u003c\/li\u003e\n\u003cli\u003eOutside diameter: 11.803 inches (299.800 mm)\u003c\/li\u003e\n\u003cli\u003eOverall height: 2.606 inches (66.200 mm)\u003c\/li\u003e\n\u003cli\u003e5 lug holes with 0.571 inch (14.500 mm) diameter\u003c\/li\u003e\n\u003cli\u003eFloating\/dih disc mounting with straight vane style\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Line Details: StopTech Sport Cross-Drilled Disc Brake Rotors\u003c\/h2\u003e\u003cp\u003eThe StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to offer enhanced braking performance through advanced rotor surface technology. The cross-drilled pattern improves ventilation and helps dissipate heat more efficiently during aggressive driving or heavy braking. This product line focuses on maintaining consistent brake feel and reducing the risk of brake fade, making it suitable for both street and light track use. The vented rotor design further supports thermal management, while the coated hat finish protects against corrosion, extending rotor life.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications and Features\u003c\/h2\u003e\u003cp\u003eThese rotors feature a nominal thickness of 0.787 inches (20.000 mm) and a discard thickness of 0.724 inches (18.400 mm), ensuring they meet OEM standards for durability and safety. The outside diameter measures 11.803 inches (299.800 mm), with an overall height of 2.606 inches (66.200 mm). The rotor includes a 5-lug hole pattern with a 4.724 inch (120.000 mm) bolt circle diameter and 0.571 inch (14.500 mm) lug hole diameter, compatible with specified BMW models. The floating\/dih disc mounting and straight vane style design contribute to effective heat dissipation and rotor stability under load.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement for worn or warped rotors on BMW 130i, 325xi, 328i, 328i xDrive, 328xi, and X1\u003c\/li\u003e\n\u003cli\u003eImproves brake cooling to reduce fade during spirited driving or towing\u003c\/li\u003e\n\u003cli\u003eAddresses rotor corrosion issues with coated hat finish\u003c\/li\u003e\n\u003cli\u003eRestores braking performance compromised by rotor surface damage\u003c\/li\u003e\n\u003cli\u003eCompatible upgrade for drivers seeking enhanced brake response and heat management\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 (0.724 inches) before installation\u003c\/li\u003e\n\u003cli\u003eClean mounting surfaces to prevent uneven rotor seating\u003c\/li\u003e\n\u003cli\u003eTorque lug nuts to manufacturer specifications for proper fitment\u003c\/li\u003e\n\u003cli\u003eCheck compatibility with ABS sensors as this rotor does not include an ABS tone ring\u003c\/li\u003e\n\u003cli\u003eInspect brake pads for wear and replace if necessary during rotor installation\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 or exceed OEM specifications for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided, StopTech products typically come with a limited warranty against defects in materials and workmanship. It is recommended to verify warranty coverage with the product supplier or manufacturer.\u003c\/p\u003e","brand":"Stoptech","offers":[{"title":"Default Title","offer_id":44573328736437,"sku":"FLMN-128.34091R","price":185.01,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/CE_12834091R_Fro.jpg?v=1774639411","url":"https:\/\/www.partcatalog.com\/products\/stoptech-128-34091r-disc-brake-rotor","provider":"PartCatalog","version":"1.0","type":"link"}