{"product_id":"riaction-gt1-coilovers-for-2021-bmw-4-series-g22","title":"Riaction GT1 Coilovers for 2021+ BMW 4-Series (G22)","description":"\u003cp\u003eThe Riaction GT1 Coilovers for the 2021+ BMW 4-Series G22 deliver a premium, adjustable suspension upgrade built for drivers who want more from their 4-Series G22 than the factory setup can offer. These BMW 4-Series coilovers are engineered to pair street comfort with canyon and track capability, giving you the stance, handling, and adjustability you've been chasing without compromising daily driveability. Whether you track your G22 4-Series on weekends or log daily miles, this G22 coilover kit dials in ride height and damping to match how you actually use the car.\u003c\/p\u003e\n\u003cp\u003eEvery GT1 set features a monotube damper with 32 levels of damping adjustment, so you can tune ride quality to match the road, the weather, or your driving mood. Full-length ride-height adjustment separates preload from ride height — meaning you can drop the 4-Series G22 to the height you want while preserving spring travel and shock stroke. Riaction coilovers for the 2021+ BMW 4-Series are fully rebuildable and backed by a 2-year warranty, making the GT1 a long-term suspension investment rather than a disposable upgrade.\u003c\/p\u003e\n\u003ch3\u003eGT1 Series Technology\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMonotube linear damper with seamless 52mm electroplated carbon steel body\u003c\/li\u003e\n\u003cli\u003e32-level damping adjustment (1-Way)\u003c\/li\u003e\n\u003cli\u003e44mm CNC-machined 6061 aluminum high-flow piston\u003c\/li\u003e\n\u003cli\u003e20mm piston rod for MacPherson applications \/ 14mm for non-MacPherson\u003c\/li\u003e\n\u003cli\u003eSAE9254 cold-wound linear main springs\u003c\/li\u003e\n\u003cli\u003eMulti-thickness valving shims for consistent damping\u003c\/li\u003e\n\u003cli\u003ePolyurethane oil seals and 7.5W suspension fluid\u003c\/li\u003e\n\u003cli\u003eLow-gas-pressure design for improved compliance\u003c\/li\u003e\n\u003cli\u003eFully rebuildable — built to be serviced, not replaced\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFull-length ride-height adjustment (preload-independent)\u003c\/li\u003e\n\u003cli\u003e32 levels of damping adjustment\u003c\/li\u003e\n\u003cli\u003eFront camber adjustment via pillowball top mounts\u003c\/li\u003e\n\u003cli\u003eOptional Swift Springs upgrade (sold separately)\u003c\/li\u003e\n\u003cli\u003e2-year limited warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003ctable class=\"table table-striped table-primary\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eBM-061-LT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Name\u003c\/td\u003e\n\u003ctd\u003eRiaction GT1 Coilovers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVehicle\u003c\/td\u003e\n\u003ctd\u003e2021+ BMW 4-Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChassis Code\u003c\/td\u003e\n\u003ctd\u003eG22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Type\u003c\/td\u003e\n\u003ctd\u003e1-Way\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRide-Height Adjustable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate - Front\u003c\/td\u003e\n\u003ctd\u003e8 Kg\/mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring Rate - Rear\u003c\/td\u003e\n\u003ctd\u003e12 Kg\/mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Mounts - Front\u003c\/td\u003e\n\u003ctd\u003ePillowball with camber plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Mounts - Rear\u003c\/td\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamber Plates - Front\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamber Plates - Rear\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension Design - Front\u003c\/td\u003e\n\u003ctd\u003eTrue Coilover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSuspension Design - Rear\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch5\u003eVehicle Fitment\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e2021 BMW 4-Series (G22)\u003c\/li\u003e\n\u003cli\u003e2022 BMW 4-Series (G22)\u003c\/li\u003e\n\u003cli\u003e2023 BMW 4-Series (G22)\u003c\/li\u003e\n\u003cli\u003e2024 BMW 4-Series (G22)\u003c\/li\u003e\n\u003cli\u003e2025 BMW 4-Series (G22)\u003c\/li\u003e\n\u003cli\u003e2026 BMW 4-Series (G22)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Riaction","offers":[{"title":"Default Title","offer_id":44203189502012,"sku":"BM-061-LT","price":1080.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0000\/2183\/files\/riaction-gt1-coilovers-for-2021-bmw-4-series-g22-bm-061-lt-1234421877.jpg?v=1777281937","url":"https:\/\/www.springrates.com\/products\/riaction-gt1-coilovers-for-2021-bmw-4-series-g22","provider":"SPRINGRATES®","version":"1.0","type":"link"}