{"product_id":"bc-racing-er-series-2-way-coilover-kit-mazda-mx-5-mk3-nc-2006-2015-n-11-er-er-copy","title":"BC Racing ER Series 2-Way Coilover Kit – Mazda MX-5 Mk4 ND Roadster 2015 Onwards • N-34-ER","description":"\u003cdiv\u003e\n\u003cp style=\"margin: 0 0 8px; font-size: calc(14px + 0.1vw);\"\u003e\u003cstrong\u003eBC Racing N-34-ER ER Series 2-Way Coilover Kit\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px; font-size: calc(14px + 0.1vw);\"\u003eBC Racing ER Series coilover kit for \u003cstrong\u003eMazda MX-5 Mk4 ND Roadster 1.5 and 2.0 2015 onwards\u003c\/strong\u003e applications listed in the compatibility table.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px; font-size: calc(14px + 0.1vw);\"\u003eThe ER Series is BC Racing's two-way adjustable external-reservoir suspension range, designed for drivers who require greater control over suspension setup for demanding fast-road, track-day and motorsport use.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003eCompression and rebound damping can be adjusted independently, allowing each aspect of the damper response to be tuned separately. Compression provides 30 adjustment positions through the external reservoirs, while rebound provides a further 30 adjustment positions at the dampers.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003eThe external reservoirs increase available damper oil capacity and help manage temperature during sustained hard use. Combined with monotube damper construction and ride-height adjustment independent from spring preload, the ER Series provides extensive scope for tailoring the suspension to the vehicle, tyres and intended use.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003eThe current N-34-ER configuration uses 5 kg\/mm front and 2.5 kg\/mm rear springs, with external-reservoir dampers and pillowball upper mounts at both the front and rear.\u003c\/p\u003e\n\n\u003cul style=\"margin: 0 0 8px; padding-left: 18px;\"\u003e\n\u003cli\u003eProduct type: Complete 2-way adjustable coilover suspension kit\u003c\/li\u003e\n\u003cli\u003eSeries: ER Series\u003c\/li\u003e\n\u003cli\u003ePrimary use: Fast road, track day and motorsport\u003c\/li\u003e\n\u003cli\u003eLocation \/ system: Front and rear suspension\u003c\/li\u003e\n\u003cli\u003eBrand: BC Racing\u003c\/li\u003e\n\u003cli\u003eProduct reference \/ part number: N-34-ER\u003c\/li\u003e\n\u003cli\u003eVehicle application: Mazda MX-5 \/ Miata Mk4 ND Roadster 2015 onwards\u003c\/li\u003e\n\u003cli\u003eEngine applications: 1.5 and 2.0 SKYACTIV-G petrol\u003c\/li\u003e\n\u003cli\u003eDamper design: Monotube\u003c\/li\u003e\n\u003cli\u003eSuspension design: True coilover front and rear\u003c\/li\u003e\n\u003cli\u003eExternal reservoirs: Front and rear\u003c\/li\u003e\n\u003cli\u003eFront spring rate: 5 kg\/mm\u003c\/li\u003e\n\u003cli\u003eRear spring rate: 2.5 kg\/mm\u003c\/li\u003e\n\u003cli\u003eDamping adjustment: Independent 2-way compression and rebound adjustment\u003c\/li\u003e\n\u003cli\u003eCompression adjustment: 30 positions via the external reservoirs\u003c\/li\u003e\n\u003cli\u003eRebound adjustment: 30 positions at the dampers\u003c\/li\u003e\n\u003cli\u003eRide height adjustment: Adjustable independently from spring preload\u003c\/li\u003e\n\u003cli\u003eFront top mount: Pillowball\u003c\/li\u003e\n\u003cli\u003eRear top mount: Pillowball\u003c\/li\u003e\n\u003cli\u003eCamber plates: Not applicable for this application\u003c\/li\u003e\n\u003cli\u003eQuantity supplied: Complete four-corner coilover suspension kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eFitment advice:\u003c\/strong\u003e Designed for Mazda MX-5 Mk4 ND Roadster applications from 2015 onwards, including the applicable 1.5 and 2.0 SKYACTIV-G models listed in the compatibility table. The exact N-34-ER application data checked specifically identifies the Roadster; RF compatibility has therefore not been assumed. For imported, modified or previously repaired cars, matching the vehicle generation, chassis code, suspension layout and kit reference is recommended before ordering.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eOther items to consider:\u003c\/strong\u003e When fitting or setting up this product, you may also want to consider purchasing replacement suspension fasteners, anti-roll bar links, suspension bushes and any worn suspension arms or ball joints. For a track-focused installation, professional four-wheel alignment and corner-weighting should also be considered once the final ride height has been established.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eUseful tools \/ consumables:\u003c\/strong\u003e Suitable vehicle lifting equipment and axle stands, socket and spanner set, torque wrench, penetrating fluid, anti-seize compound and the appropriate BC Racing coilover adjustment tools. Professional wheel-alignment and suspension setup equipment will be required for final geometry and damper setup.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eDifficulty guide:\u003c\/strong\u003e DIY Difficulty: Advanced. Installation involves replacement of the complete front and rear suspension assemblies together with installation and positioning of the external reservoir components. Ride height, geometry, compression and rebound damping must then be set correctly. Professional installation and setup are recommended for a suspension system of this type.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eWhy BC Racing?\u003c\/strong\u003e BC Racing ER Series suspension provides independently adjustable compression and rebound damping together with external reservoirs, giving considerably greater suspension tuning control than a conventional single-adjustable coilover. The combination of monotube dampers, increased oil capacity, independent ride-height adjustment and separate 30-position compression and rebound adjustment makes the ER Series particularly well suited to serious fast-road, track-day and motorsport applications.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eWhat’s in the box:\u003c\/strong\u003e Complete four-corner BC Racing ER Series coilover suspension kit with front and rear dampers, 5 kg\/mm front springs, 2.5 kg\/mm rear springs, front and rear external reservoir assemblies, pillowball upper mounts, coilover adjustment tools and associated installation components supplied with the N-34-ER kit.\u003c\/p\u003e\n\n\u003cp style=\"margin: 0 0 8px;\"\u003e\u003cstrong\u003eInstallation \/ setup notes:\u003c\/strong\u003e The external reservoirs must be positioned and secured correctly during installation. Ride height, spring preload, compression damping and rebound damping should be set methodically, beginning from a known baseline and making controlled adjustments. Once the required ride height has been established, all suspension mounting hardware should be tightened to the appropriate specification and a full four-wheel geometry alignment carried out before final suspension tuning.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":57987165061502,"sku":"N-34-ER","price":1798.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/8274\/9408\/files\/ERSeries.jpg?v=1788679919","url":"https:\/\/www.mazspec.co.uk\/products\/bc-racing-er-series-2-way-coilover-kit-mazda-mx-5-mk3-nc-2006-2015-n-11-er-er-copy","provider":"MazSpec","version":"1.0","type":"link"}