{"product_id":"bosch-quietcast-premium-front-disc-brake-rotor-318-7-mm-precision-balanced-corrosion-resistant","title":"Bosch QuietCast Premium Front Disc Brake Rotor 318.7 mm — precision-balanced, corrosion-resistant","description":"\u003cp\u003e\u003cstrong\u003eBOSCH QuietCast Premium Disc Brake Rotor (front, 318.7 mm) is a precision-balanced, corrosion-resistant replacement rotor engineered for smooth braking and long service life.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis front rotor from Bosch combines decades of original-equipment braking experience with aftermarket durability features. It arrives factory-balanced to minimize pedal pulsation, uses an aluminum\/zinc cosmetic coating to resist surface rust, and includes engraved discard-thickness markings so you can tell when replacement is needed. Built to fit applications that require a 318.7 mm diameter, this single rotor is designed for mechanics and DIYers who want reliable stopping performance with a clean appearance under modern open-wheel designs.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this rotor reduce vibration and pedal pulsation?\u003c\/h3\u003e\n\u003cp\u003eThe rotor is precision-milled and factory-balanced to distribute weight evenly around the hat and braking surface. That balance minimizes eccentric forces during rotation, which helps prevent steering-wheel and pedal shake under braking. Bosch also uses a vane layout matched to OE specifications to manage heat and stiffness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory mill precision balancing for even weight distribution\u003c\/li\u003e\n  \u003cli\u003eOE-style vane pattern for controlled heat flow and reduced flex\u003c\/li\u003e\n  \u003cli\u003ePrecision-machined braking face to maintain uniform contact with pads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat protects the rotor from rust and keeps wheels looking clean?\u003c\/h3\u003e\n\u003cp\u003eThe rotor’s aluminum\/zinc finish provides a thin, durable protective layer over the cast surface. This coating slows surface corrosion in exposed areas and helps maintain a neat appearance behind open-spoke wheels without affecting braking contact zones.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum\/zinc coating on non-contact areas to resist corrosion\u003c\/li\u003e\n  \u003cli\u003eClean visual finish that complements modern wheel designs\u003c\/li\u003e\n  \u003cli\u003eCoating applied to extend usable life in humid or salted-road conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I know when the rotor needs replacing?\u003c\/h3\u003e\n\u003cp\u003eBosch QuietCast rotors include an engraved discard-thickness mark on the rotor edge so you can confirm remaining serviceable material. Measure with a micrometer at the specified location and replace the rotor when it reaches or falls below the engraved limit. The visible Bosch brand engraving also verifies authenticity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFactory-engraved minimum-thickness indicator on the rotor edge\u003c\/li\u003e\n  \u003cli\u003eOn-part Bosch marking for quick verification of genuine product\u003c\/li\u003e\n  \u003cli\u003eDiscard dimension gives a clear maintenance threshold for safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this rotor work with ABS systems and factory electronics?\u003c\/h3\u003e\n\u003cp\u003eOn vehicles that require it, Bosch QuietCast rotors are produced with OEM-style ABS tone ring features to ensure compatibility with wheel-speed sensor systems. Properly matched rotors maintain reliable input to ABS and traction-control modules, reducing the chance of warning lights or degraded system response.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOE-style tone ring provision on applicable part numbers\u003c\/li\u003e\n  \u003cli\u003eDesigned for reliable wheel-speed sensor readings and ABS operation\u003c\/li\u003e\n  \u003cli\u003eManufactured to Bosch quality standards to match original equipment expectations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this rotor is for: mechanics, service shops and knowledgeable DIY owners who need a single front replacement rotor for vehicles specified at 318.7 mm diameter and who value OE-level balancing, corrosion resistance, and clear service markings. It’s a practical choice when you want a direct-fit, dependable aftermarket rotor from a long-established original-equipment supplier.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the Bosch QuietCast rotor pre-balanced?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each rotor is factory precision-mill balanced to reduce pedal pulsation and vibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this rotor resist rust behind open wheels?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. An aluminum\/zinc coating protects non-contact areas to slow surface corrosion and keep wheels looking cleaner.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":55171346694487,"sku":"B004AG6KMC","price":111.57,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/bosch-quietcast-front-rotor-packaging_e244c3c7-2be1-4fc0-9d5e-9a2ca17cdcb7.jpg?v=1790443410","url":"https:\/\/britishgarage.co.uk\/products\/bosch-quietcast-premium-front-disc-brake-rotor-318-7-mm-precision-balanced-corrosion-resistant","provider":"British Garage","version":"1.0","type":"link"}