Improve front-end balance, handling, and suspension predictability with the Race Tech Fork Spring 0.48 kg/mm. Designed for performance-focused riders, this replacement fork spring helps provide a more appropriate spring rate for motorcycles that may be under-sprung for the rider’s weight and riding conditions. Its accurate rate supports consistent suspension performance on the track, trail, or street.
Manufactured by Race Tech from chrome silicon wire, this high-performance spring delivers a strong stiffness-to-mass ratio while maintaining durability under demanding use. The spring is shot-peened and heat treated to help resist fatigue and prevent sacking out over time. The Race Tech manufacturer part number is FRSP 444948, and the vendor part number is also FRSP 444948.
This 0.48 kg/mm fork spring fits select Yamaha and Suzuki applications, including the 2014 and 2015 Yamaha YZ250F, 2014 and 2015 Yamaha YZ450F, 2019 Yamaha YZ250F, 2019 Yamaha YZ450F, 2019 Suzuki RM-Z250, and 2019–2021 Yamaha WR450F. Verify motorcycle year, model, suspension configuration, and required spring rate before installation. Professional installation and suspension setup are recommended for optimal fitment and handling performance.
Features:
- 0.48 kg/mm spring rate for improved front suspension balance and predictable handling
- High-quality Race Tech replacement fork spring
- Manufactured from durable chrome silicon wire
- High stiffness-to-mass ratio for responsive suspension performance
- Shot-peened and heat treated to improve fatigue resistance
- Accurate spring rate helps maintain consistent performance
- Designed to resist sacking out during demanding riding
- Fits select Yamaha YZ250F, YZ450F, WR450F and Suzuki RM-Z250 models
- Manufacturer and vendor part number: FRSP 444948
Fitment:
2014 Yamaha YZ250F
2014 Yamaha YZ450F
2015 Yamaha YZ250F
2015 Yamaha YZ450F
2016 Yamaha YZ250F
2016 Yamaha YZ450F
2017 Yamaha YZ250F
2017 Yamaha YZ450F
2018 Yamaha YZ250F
2018 Yamaha YZ450F
2019 Suzuki RM-Z250
2019 Yamaha WR450F
2019 Yamaha YZ250F
2019 Yamaha YZ450F
2019 Yamaha YZ450FX
2020 Kawasaki KX250F
2020 Suzuki RM-Z250
2020 Yamaha WR450F
2020 Yamaha YZ250F
2020 Yamaha YZ250FX
2020 Yamaha YZ450F
2020 Yamaha YZ450FX
2021 Kawasaki KX250F
2021 Kawasaki KX250X
2021 Suzuki RM-Z250
2021 Yamaha WR450F
2021 Yamaha YZ250F
2021 Yamaha YZ250FX
2021 Yamaha YZ450F
2021 Yamaha YZ450FX
2022 Kawasaki KX250F
2022 Kawasaki KX250X
2022 Kawasaki KX450SR
2022 Suzuki RM-Z250
2022 Yamaha WR450F
2022 Yamaha YZ125
2022 Yamaha YZ125X
2022 Yamaha YZ250
2022 Yamaha YZ250F
2022 Yamaha YZ250FX
2022 Yamaha YZ250X
2022 Yamaha YZ450F
2022 Yamaha YZ450FX
2023 Beta 125 RR (RE)
2023 Beta 200 RR (RE)
2023 Beta 350 RR (RE)
2023 Beta 390 RR (RE)
2023 Beta 480 RR (RE)
2023 Kawasaki KX250F
2023 Kawasaki KX250X
2023 Suzuki RM-Z250
2023 Yamaha WR450F
2023 Yamaha YZ125
2023 Yamaha YZ125X
2023 Yamaha YZ250
2023 Yamaha YZ250F
2023 Yamaha YZ250FX
2023 Yamaha YZ250X
2023 Yamaha YZ450F
2023 Yamaha YZ450FX
2024 Kawasaki KX250F
2024 Kawasaki KX250X
2024 Suzuki RM-Z250
2024 Yamaha WR450F
2024 Yamaha YZ125
2024 Yamaha YZ125X
2024 Yamaha YZ250
2024 Yamaha YZ250F
2024 Yamaha YZ250FX
2024 Yamaha YZ250X
2024 Yamaha YZ450F
2024 Yamaha YZ450FX