Improve front-end balance, handling, and suspension predictability with the Race Tech Fork Spring 0.46 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 or riding conditions. Proper spring selection supports consistent suspension response and improved control across demanding terrain.
Manufactured by Race Tech from high-quality chrome silicon wire, the FRSP 444946 spring delivers a high stiffness-to-mass ratio while maintaining dependable performance. The spring is shot-peened and heat treated for durability, helping resist fatigue and maintain its accurate rate over time without unwanted sag or “sacking out.” Its carefully controlled rate makes it a suitable choice for riders seeking a more balanced and predictable front suspension setup.
This 0.46 kg/mm fork spring is designed for select Yamaha and Suzuki motorcycles, including the 2014 and 2015 Yamaha YZ250F, 2014 and 2015 Yamaha YZ450F, 2019 Yamaha YZ250F, 2019 Yamaha YZ450F, 2019 Suzuki RM-Z250, and 2019 through 2021 Yamaha WR450F. Verify motorcycle year, model, suspension configuration, and required spring rate before installation. Race Tech manufacturer and vendor part number FRSP 444946 identifies this spring for the listed applications.
Features:
- Spring Rate: 0.46 kg/mm for improved front suspension balance and predictable handling
- Material: Chrome silicon wire for high-performance durability
- Construction: High stiffness-to-mass ratio for responsive suspension performance
- Durability: Shot-peened and heat treated to help resist fatigue
- Rate Accuracy: Precisely manufactured to deliver consistent spring performance
- Sag Resistance: Designed to maintain its specified rate without premature sacking out
- Fitment: Fits select 2014–2015 Yamaha YZ250F and YZ450F, 2019 Yamaha YZ250F and YZ450F, 2019 Suzuki RM-Z250, and 2019–2021 Yamaha WR450F models
- Brand: Race Tech
- Manufacturer Part Number: FRSP 444946
- Vendor Part Number: FRSP 444946
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