{"product_id":"ac-schnitzer-21-wheel-tyre-set-ac3-flowforming-black-continental-for-bmw-5-series-g30-g31-lci-82403147108","title":"AC Schnitzer 21\" wheel \u0026 tyre set AC3 FlowForming black Continental for BMW 5 Series G30\/G31 LCI (82403147108)","description":"\u003cp\u003eWheelset development at AC Schnitzer A few definitions first Wheel\/complete wheel = rim including tire Wheel set = 4 wheels Mixed tires = Different tires on front and rear axles Philosophy\/Design The wheels establish a car's connection to the road not only physically but also visually. \"Therefore, the correct proportions of the rims to the body are crucial,\" explains AC Schnitzer Chief Designer Michele Viandante. \"Rims that are too small can quickly make a vehicle appear long-legged and unstable.\" The AC3 Flow forming rims achieve what initially seems contradictory: reducing weight while simultaneously increasing the wheel diameter. The AC3 Flow forming rims measure 9 or 10 x 21 inches. Three colour variants are available: Bicolour Silver\/Anthracite or Matt Anthracite and Black. Visually, the rims are clearly part of the AC3 rim family and complement the portfolio in terms of sizes, applications, and manufacturing processes. The lower weight of the AC3 Flow forming wheels reduces the vehicle's unsprung mass by approximately 10 kg, thereby also lowering its CO2 emissions. At the same time, there is also a noticeable improvement in driving dynamics, as the centrifugal forces on the axles are reduced by approximately four times - a perceived 40 kg. The AC Schnitzer AC3 Flow forming wheels therefore offer real advantages: for the driver and the environment. material Only high-quality aluminium alloys are used. The material undergoes additional heat treatment during the production process, resulting in increased strength and reduced weight. Material samples taken during the manufacturing process ensure the consistently high quality of the material. production Flow forming is one of the most advanced manufacturing technologies in the wheel industry. In this production process, after the initial aluminium casting, the raw product is further processed by rolling. This step serves to compact the metal, guaranteeing greater stability and impact resistance of the rim. Furthermore, the improved stability allows for even more intricate rim designs, as the wall thicknesses can be significantly thinner compared to conventionally manufactured rims. And this is measurable: compared, for example, to the BMW forged \"Double Spoke 706 M\" rim for the M5, which at 10.5J x 20\" is even one inch smaller than the new AC3 flow-formed rims, these are 2.4 kg or 2.5 kg lighter than the BMW rim. Surface Black In this process, the wheel is first primed, then completely painted. A two-coat clear coat is then applied, consisting of a polyester primer and a glossy acrylic clear coat. Testing procedures \/ Safety After their design, the first sample rims are manufactured under real production conditions. These must undergo a multitude of tests. Among other things, their strength is tested. The bending test simulates the \"rim lifespan.\" Every AC Schnitzer rim must survive this lifespan unscathed in order to be produced and sold. Vehicle-specific tests, including test installations with clearance measurements and driving tests on public roads and racetracks, follow. Only after these procedures do our rims receive homologation, i.e., approval for use on public roads. Wheels are safety-critical components. Therefore, they are inspected and tested with the utmost care. This begins with initial chemical material tests and concludes with rigorous endurance tests on test machines: - §30 StVZO wheel guidelines - ECE R124 - Bending tests - 90° impact test - Rolling tests Scope of\u003c\/p\u003e\u003ch3\u003eProduct details\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e AC Schnitzer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Tyres (Race \u0026amp; Track)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCatalogue SKU:\u003c\/strong\u003e 82403147108\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAvailability:\u003c\/strong\u003e check supplier availability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTorque Monsta fitment confirmation:\u003c\/strong\u003e Check the manufacturer part number, vehicle model, generation, engine, power output, year range and factory options before ordering. Professional installation is recommended where specialist tools, calibration or safety-critical work are involved. Contact Torque Monsta before purchase if any fitment detail is unclear.\u003c\/p\u003e","brand":"AC Schnitzer","offers":[{"title":"Default Title","offer_id":58167531307333,"sku":"82403147108","price":4265.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/6729\/6069\/files\/82403147108_0_600x600_1feaed39-84af-4e6b-ac2b-a10967188147.jpg?v=1780555333","url":"https:\/\/www.torquemonsta.store\/products\/ac-schnitzer-21-wheel-tyre-set-ac3-flowforming-black-continental-for-bmw-5-series-g30-g31-lci-82403147108","provider":"Torque Monsta Automotive LLP","version":"1.0","type":"link"}