{"product_id":"suspension-secrets-adjustable-rear-billet-traction-arms-bmw-1m","title":"Suspension Secrets Adjustable Rear Billet Traction Arms - BMW 1M","description":"\u003ch3\u003e\u003cspan\u003eSuspension Secrets Adjustable Rear Billet Traction Arms – BMW 1M\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eImprove rear-end traction, stability and throttle response on your BMW E82 1M with Suspension Secrets Adjustable Rear Billet Traction Arms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDesigned and manufactured in the UK, these rear traction arms replace the standard folded-steel BMW arms with a stronger, solid-mounted and adjustable billet design developed to reduce unwanted suspension flex and improve rear axle control under acceleration.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eImproved Traction Under Acceleration\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe rear traction arms play an important role in controlling the position and movement of the rear wheel as load is transferred through the suspension.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe standard BMW arms can flex under hard acceleration. Suspension Secrets designed these billet replacements to provide a more rigid connection, helping the rear suspension geometry remain more consistent when the car is driven hard.\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 acceleration traction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased straight-line stability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore responsive rear axle behaviour\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved corner-exit traction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreater confidence when applying throttle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore consistent rear suspension geometry\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eReduced Unwanted Suspension Flex\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Suspension Secrets arms use a solid-mounted design rather than the more compliant factory arrangement.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eReducing movement within the arm helps prevent unwanted geometry changes as load is applied through the rear axle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis can make the car respond more directly to throttle inputs and provide a more predictable rear-end feel during acceleration and corner exit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eAdjustable Rear Axle Kinematics\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnlike the non-adjustable factory arms, these Suspension Secrets traction arms provide two fixed length configurations using the supplied shim kits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe kit includes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eOEM-position shim configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased-length track configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis allows the rear suspension geometry to be configured around how the car is being used.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOEM Position\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe standard shim position retains an arm length corresponding to the OEM mounting geometry.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis is suitable for drivers who want the strength, precision and reduced compliance of the billet arm while retaining the standard rear suspension kinematics.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eTrack \/ Increased Traction Position\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe second shim configuration increases the effective arm length and alters the rear axle kinematics.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSuspension Secrets developed this position specifically to increase mechanical traction under compression, such as when applying throttle on corner exit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eChanging the arm length alters the path through which the rear suspension moves, helping load the tyre differently as the suspension compresses.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis makes the increased-length configuration particularly suited to:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTrack days\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMotorsport\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher-power cars\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigher-grip tyres\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDrivers prioritising corner-exit traction\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eImproved Corner Exit Performance\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUnder acceleration out of a corner, weight transfers towards the rear axle while the suspension compresses.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe track-position geometry is designed to make more effective use of this movement, increasing mechanical grip at the tyre during throttle application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThis can help provide:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eImproved traction when accelerating out of corners\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore confidence applying throttle earlier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreater rear axle stability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore predictable power delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe exact benefit will depend on the complete suspension geometry, tyres, differential setup and available grip.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSolid-Mounted Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe solid-mounted design reduces the compliance present in the original rear traction arms.\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\u003eMore immediate rear axle response\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced unwanted toe movement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore consistent geometry under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved feedback\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreater chassis precision\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eAs with any solid or spherical-bearing suspension component, some additional mechanical feedback may be noticeable compared with an entirely rubber-mounted factory component.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMotorsport-Spec Fluro Bearings\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSuspension Secrets uses motorsport-spec Fluro bearings within the arm assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThese are selected to provide precise articulation while minimising unwanted compliance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBenefits include:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAccurate suspension movement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced unwanted flex\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh load capability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved geometry consistency\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitability for road and track use\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eBillet Aluminium Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe arms are manufactured using high-quality materials chosen for strength, durability and corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConstruction includes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBillet 6082 T6 aircraft-grade aluminium\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCorrosion-resistant stainless-steel components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMotorsport-spec Fluro bearings\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eSuspension Secrets designs and manufactures its products in the UK.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eKey Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eImproved rear traction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased straight-line stability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMore responsive rear axle to throttle inputs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved corner-exit traction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced unwanted suspension flex\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReduced unwanted toe change under load\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdjustable rear suspension kinematics\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM-length configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncreased-length track configuration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTwo shim kits included\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSolid-mounted construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMotorsport-spec Fluro bearings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBillet 6082 T6 aluminium construction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCorrosion-resistant stainless-steel components\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned and manufactured in the UK\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eRoad \u0026amp; Track Setup Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe two-position design makes these arms suitable for both road and track-focused BMW 1M builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor road and fast-road use, the OEM-position configuration retains the standard kinematic position while benefiting from the increased rigidity of the billet arm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eFor more focused track use, the increased-length shim configuration can be used to alter the rear axle kinematics and further prioritise traction.\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 E82 1M Coupe\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf you are unsure whether these arms are suitable for your suspension or geometry setup, please contact The Rosso Corsa Collective before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eProfessional Installation \u0026amp; Geometry Setup Recommended\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eProfessional installation is strongly recommended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBecause these arms can alter the rear suspension geometry and kinematics, a full four-wheel geometry setup should be carried out following installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eIf changing between the OEM and increased-length track configurations, the vehicle geometry should be checked again to ensure the rear axle remains correctly configured.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExplore More BMW 1 Series E8x Handling\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\/suspension-secrets\"\u003eSuspension Secrets\u003c\/a\u003e – Browse geometry, handling and chassis upgrades.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003e\u003ca href=\"https:\/\/therossocorsacollective.com\/collections\/suspension-arms-alignment\"\u003eSuspension Arms \u0026amp; Alignment\u003c\/a\u003e – Explore camber, caster and geometry components.\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 suspension and chassis upgrades for road and track use.\u003c\/span\u003e\u003c\/p\u003e","brand":"Suspension Secrets","offers":[{"title":"Default Title","offer_id":55057675583825,"sku":null,"price":399.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6371\/5665\/files\/IMG_7129a_1.webp?v=1790174206","url":"https:\/\/therossocorsacollective.com\/products\/suspension-secrets-adjustable-rear-billet-traction-arms-bmw-1m","provider":"The Rosso Corsa Collective","version":"1.0","type":"link"}