{"product_id":"race-tech-fork-spring-0-42-kg-mm-for-yamaha-yz250f-yz450f-wr450f-and-suzuki-rm-z250","title":"Race Tech Fork Spring 0.42 kg\/mm for Yamaha YZ250F, YZ450F, WR450F and Suzuki RM-Z250","description":"The first step to great handling and predictability is selecting proper spring rates. With over 500 Hi-Performance Springs to choose from, Race Tech is almost guaranteed to have the spring you need. Sportbikes are generally under-sprung for the average rider, causing the bike to be unbalanced and unpredictable.\n\u003cp\u003eUpgrade front-end control with the Race Tech Fork Spring, rated at 0.42 kg\/mm and identified by manufacturer part number FRSP 444942. Designed for motorcycle suspension applications, this high-performance replacement spring helps establish more appropriate spring rates for improved handling, balance, and predictability. It is suitable for riders whose original equipment springs may be under-sprung for their weight or riding conditions.\u003c\/p\u003e\u003cp\u003eRace Tech manufactures this fork spring from chrome silicon wire for a high stiffness-to-mass ratio and consistent performance. The spring is shot-peened and heat treated to support long-term durability, while its accurate rate helps maintain dependable suspension response. The design resists sacking-out, helping the spring retain its intended performance over time and repeated use.\u003c\/p\u003e\u003cp\u003eThis Race Tech 0.42 kg\/mm fork spring fits select Yamaha and Suzuki motorcycles, including the 2014 and 2015 Yamaha YZ250F, 2014, 2015, and 2019 Yamaha YZ450F, 2019 Yamaha YZ250F, 2019 and 2020 Yamaha WR450F, 2021 Yamaha WR450F, and 2019 Suzuki RM-Z250. Verify model year, suspension specifications, and required spring rate before installation. Manufacturer part number: FRSP 444942. Vendor part number: 200-444942.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSpring Rate: 0.42 kg\/mm for tuned front-fork suspension performance\u003c\/li\u003e\n\u003cli\u003eMaterial: Chrome silicon wire for strength and consistent response\u003c\/li\u003e\n\u003cli\u003eConstruction: Shot-peened and heat treated for enhanced durability\u003c\/li\u003e\n\u003cli\u003ePerformance: High stiffness-to-mass ratio supports responsive handling\u003c\/li\u003e\n\u003cli\u003eConsistency: Accurate spring rate helps improve balance and predictability\u003c\/li\u003e\n\u003cli\u003eDurability: Designed to resist sacking-out during repeated use\u003c\/li\u003e\n\u003cli\u003eFitment: Select 2014, 2015, 2019, 2020, and 2021 Yamaha YZ250F, YZ450F, and WR450F models, plus the 2019 Suzuki RM-Z250\u003c\/li\u003e\n\u003cli\u003eBrand: Race Tech\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: FRSP 444942\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 200-444942\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2014 Yamaha YZ250F\u003cbr\u003e\n2014 Yamaha YZ450F\u003cbr\u003e\n2015 Yamaha YZ250F\u003cbr\u003e\n2015 Yamaha YZ450F\u003cbr\u003e\n2016 Yamaha YZ250F\u003cbr\u003e\n2016 Yamaha YZ450F\u003cbr\u003e\n2017 Yamaha YZ250F\u003cbr\u003e\n2017 Yamaha YZ450F\u003cbr\u003e\n2018 Yamaha YZ250F\u003cbr\u003e\n2018 Yamaha YZ450F\u003cbr\u003e\n2019 Suzuki RM-Z250\u003cbr\u003e\n2019 Yamaha WR450F\u003cbr\u003e\n2019 Yamaha YZ250F\u003cbr\u003e\n2019 Yamaha YZ450F\u003cbr\u003e\n2019 Yamaha YZ450FX\u003cbr\u003e\n2020 Kawasaki KX250F\u003cbr\u003e\n2020 Suzuki RM-Z250\u003cbr\u003e\n2020 Yamaha WR450F\u003cbr\u003e\n2020 Yamaha YZ250F\u003cbr\u003e\n2020 Yamaha YZ250FX\u003cbr\u003e\n2020 Yamaha YZ450F\u003cbr\u003e\n2020 Yamaha YZ450FX\u003cbr\u003e\n2021 Kawasaki KX250F\u003cbr\u003e\n2021 Kawasaki KX250X\u003cbr\u003e\n2021 Suzuki RM-Z250\u003cbr\u003e\n2021 Yamaha WR450F\u003cbr\u003e\n2021 Yamaha YZ250F\u003cbr\u003e\n2021 Yamaha YZ250FX\u003cbr\u003e\n2021 Yamaha YZ450F\u003cbr\u003e\n2021 Yamaha YZ450FX\u003cbr\u003e\n2022 Kawasaki KX250F\u003cbr\u003e\n2022 Kawasaki KX250X\u003cbr\u003e\n2022 Kawasaki KX450SR\u003cbr\u003e\n2022 Suzuki RM-Z250\u003cbr\u003e\n2022 Yamaha WR450F\u003cbr\u003e\n2022 Yamaha YZ125\u003cbr\u003e\n2022 Yamaha YZ125X\u003cbr\u003e\n2022 Yamaha YZ250\u003cbr\u003e\n2022 Yamaha YZ250F\u003cbr\u003e\n2022 Yamaha YZ250FX\u003cbr\u003e\n2022 Yamaha YZ250X\u003cbr\u003e\n2022 Yamaha YZ450F\u003cbr\u003e\n2022 Yamaha YZ450FX\u003cbr\u003e\n2023 Beta 125 RR (RE)\u003cbr\u003e\n2023 Beta 200 RR (RE)\u003cbr\u003e\n2023 Beta 350 RR (RE)\u003cbr\u003e\n2023 Beta 390 RR (RE)\u003cbr\u003e\n2023 Beta 480 RR (RE)\u003cbr\u003e\n2023 Kawasaki KX250F\u003cbr\u003e\n2023 Kawasaki KX250X\u003cbr\u003e\n2023 Suzuki RM-Z250\u003cbr\u003e\n2023 Yamaha WR450F\u003cbr\u003e\n2023 Yamaha YZ125\u003cbr\u003e\n2023 Yamaha YZ125X\u003cbr\u003e\n2023 Yamaha YZ250\u003cbr\u003e\n2023 Yamaha YZ250F\u003cbr\u003e\n2023 Yamaha YZ250FX\u003cbr\u003e\n2023 Yamaha YZ250X\u003cbr\u003e\n2023 Yamaha YZ450F\u003cbr\u003e\n2023 Yamaha YZ450FX\u003cbr\u003e\n2024 Kawasaki KX250F\u003cbr\u003e\n2024 Kawasaki KX250X\u003cbr\u003e\n2024 Suzuki RM-Z250\u003cbr\u003e\n2024 Yamaha WR450F\u003cbr\u003e\n2024 Yamaha YZ125\u003cbr\u003e\n2024 Yamaha YZ125X\u003cbr\u003e\n2024 Yamaha YZ250\u003cbr\u003e\n2024 Yamaha YZ250F\u003cbr\u003e\n2024 Yamaha YZ250FX\u003cbr\u003e\n2024 Yamaha YZ250X\u003cbr\u003e\n2024 Yamaha YZ450F\u003cbr\u003e\n2024 Yamaha YZ450FX","brand":"RACE TECH","offers":[{"title":"Default Title","offer_id":67558381650155,"sku":"200-444942","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/70e8-5be9d0756ad73_be884d48-0948-495b-88dc-d981011ad85b.jpg?v=1790760722","url":"https:\/\/ctracingservices.com\/products\/race-tech-fork-spring-0-42-kg-mm-for-yamaha-yz250f-yz450f-wr450f-and-suzuki-rm-z250","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}