{"product_id":"bc-racing-er-series-bmw-1-series-e81-04-13-excl-1m-coupe","title":"BC Racing ER Series - BMW 1 SERIES E81 (04-13) (EXCL 1M COUPE)","description":"\u003ch3\u003e\u003cspan\u003eBC Racing ER Series Coilovers – BMW 1 Series E81 2004-2013\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUpgrade the suspension of your BMW 1 Series E81 with BC Racing ER Series Coilovers, developed for drivers wanting a more advanced suspension setup for fast-road, trackday and motorsport use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ER Series sits above the more conventional single-adjustable setups by offering greater damping control and a more focused specification for cars that see demanding road or circuit use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor this application, available spring-rate configurations include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e5.5 \/ 8kg\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e8 \/ 12kg\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eAvailable Spring Rates\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eTwo spring-rate configurations are available for this application:\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003e5.5 \/ 8kg\/mm\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFront: 5.5kg\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRear: 8kg\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is the more road-friendly option, offering a stronger balance between performance and everyday usability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt is well suited to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFast-road driving\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMixed road and track use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDaily-driven performance cars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrivers wanting improved control without an excessively stiff setup\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003e8 \/ 12kg\/mm\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFront: 8kg\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRear: 12kg\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is the firmer and more track-focused configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIt is better suited to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRegular track days\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher-grip tyres\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eClubsport builds\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore aggressive chassis setups\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrivers prioritising body control and response\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003ePerformance-Focused Suspension\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ER Series is particularly well suited to drivers who want greater control over chassis behaviour under demanding conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003ePotential benefits include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eImproved body control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSharper steering response\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBetter cornering stability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced pitch and roll\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreater control during weight transfer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore confidence under repeated hard driving\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eAdjustable Ride Height\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBC Racing ER Series Coilovers allow ride height to be adjusted to suit your preferred stance and intended use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis gives greater control over:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eVehicle height\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWheel fitment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eArch clearance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCentre of gravity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOverall chassis setup\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eRide height should always be configured with sufficient suspension travel and clearance for safe road or track use.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAdjustable Damping\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe ER Series provides advanced damping adjustment, allowing the suspension response to be tailored around:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRoad conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTyre choice\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDriver preference\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVehicle setup\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTrack conditions\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis allows the suspension to be fine-tuned more precisely than a fixed or basic adjustable setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eChoosing the Right Spring Rate\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChoose 5.5\/8kg.mm if you want:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBetter road comfort\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStrong fast-road performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOccasional track capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA more compliant overall setup\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChoose 8\/12kg.mm if you want:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFirmer chassis control\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore track-focused behaviour\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBetter support for higher-grip tyres\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA more aggressive suspension setup\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you're unsure which spring rate best suits your car, contact us before ordering and we can help select the most appropriate configuration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVehicle Fitment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDesigned for:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW 1 Series E81\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eModel years 2004-2013\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExcludes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBMW 1M Coupe\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eExact fitment can vary by engine, chassis and suspension specification, so compatibility should always be confirmed before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProduct Image \u0026amp; Configuration Note\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eProduct images are generic and are intended for illustration purposes only.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe exact kit supplied can vary depending on vehicle application and selected configuration, including:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTop mount design\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCamber adjustment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSpring rates\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRear mount configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReservoir arrangement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdditional hardware\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you have specific requirements such as top mounts, spring rates or a particular road or track setup, please contact The Rosso Corsa Collective before ordering so the correct specification can be confirmed.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProfessional Installation Recommended\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eProfessional installation is recommended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAfter fitting coilovers, the vehicle should receive a full wheel alignment and geometry setup to ensure correct handling, tyre wear and suspension performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExplore More BMW 1 Series Suspension\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e\u003ca href=\"https:\/\/therossocorsacollective.com\/collections\/1st-generation-e8x\"\u003eBMW 1 Series E8x\u003c\/a\u003e – Explore suspension, braking and performance upgrades for E81, E82, E87 and E88 models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e\u003ca href=\"https:\/\/therossocorsacollective.com\/collections\/bc-racing\"\u003eBC Racing\u003c\/a\u003e – Browse BC Racing coilovers and suspension upgrades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e\u003ca href=\"https:\/\/therossocorsacollective.com\/collections\/coilovers\"\u003eCoilovers\u003c\/a\u003e – Explore adjustable suspension kits for road and track use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/therossocorsacollective.com\/collections\/suspension\"\u003eSuspension \u0026amp; Handling\u003c\/a\u003e – Browse chassis, suspension and geometry upgrades.\u003c\/span\u003e\u003c\/p\u003e","brand":"BC Racing","offers":[{"title":"ER - 8\/12KG.MM","offer_id":55055728312657,"sku":"0073402","price":1749.0,"currency_code":"GBP","in_stock":true},{"title":"ER - 5.5\/8KG.MM","offer_id":55055728345425,"sku":"0040530","price":1749.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6371\/5665\/files\/BC-Racing-ER-Series-Volkswagen-Golf-MK7-Variant-FWD-_Strut-54.5mm_-_2013-2019_-BC-Racing-8145257.png?v=1762951667","url":"https:\/\/therossocorsacollective.com\/products\/bc-racing-er-series-bmw-1-series-e81-04-13-excl-1m-coupe","provider":"The Rosso Corsa Collective","version":"1.0","type":"link"}