Improve front-end balance, handling, and ride predictability with the Race Tech Fork Spring 0.52 kg/mm. Designed for riders who need properly matched suspension rates, this high-performance fork spring helps address the under-sprung condition common on sport and off-road motorcycles. Its accurate spring rate supports consistent suspension performance and improved control across changing terrain.
Manufactured from high-quality chrome silicon wire, the Race Tech FRSP 444752 fork spring provides a high stiffness-to-mass ratio while maintaining durable performance. The spring is shot-peened and heat treated to resist fatigue and help prevent sacking-out over time. These manufacturing processes deliver dependable rate accuracy for riders seeking a precise suspension setup.
This Race Tech fork spring fits select Yamaha and KTM applications, including the 2015–2019 Yamaha YZ250FX, 2016–2017 Yamaha YZ450FX, 2017–2018 Yamaha WR450F, 2019 Yamaha WR250F, and 2017 KTM 150 XC-W. Confirm motorcycle year, model, and suspension requirements before installation to ensure the 0.52 kg/mm rate is appropriate for your riding style and setup. Manufacturer part number: FRSP 444752. Vendor part number: FRSP 444752.
Features:
- Spring Rate: 0.52 kg/mm for improved suspension balance and handling
- Material: Chrome silicon wire for strength and reliable performance
- Construction: High stiffness-to-mass ratio for responsive suspension action
- Durability: Shot-peened and heat treated to resist fatigue
- Rate Accuracy: Precisely manufactured for consistent suspension tuning
- Sacking Resistance: Designed to maintain performance over time
- Fitment: Fits 2015–2019 Yamaha YZ250FX, 2016–2017 Yamaha YZ450FX, 2017–2018 Yamaha WR450F, 2019 Yamaha WR250F, and 2017 KTM 150 XC-W
- Brand: Race Tech
- Model: Fork Spring 0.52 kg/mm
- Manufacturer Part Number: FRSP 444752
- Vendor Part Number: FRSP 444752
Fitment:
2005 Kawasaki KX250
2005 Yamaha YZ125
2005 Yamaha YZ250
2005 Yamaha YZ250F
2005 Yamaha YZ450F
2006 Kawasaki KX250
2007 Kawasaki KX250
2007 Kawasaki KX450F
2008 Kawasaki KX450F
2009 Kawasaki KX450F
2010 Kawasaki KX450F
2010 Yamaha YZ450F
2011 Kawasaki KX450F
2011 Yamaha YZ450F
2012 Kawasaki KX450F
2012 Yamaha YZ450F
2013 Yamaha YZ450F
2014 Beta 450 RR
2014 Beta 498 RR
2015 Yamaha YZ250FX
2016 Yamaha YZ250FX
2016 Yamaha YZ450FX
2017 KTM 150 XC-W
2017 KTM 250 EXC-F
2017 KTM 250 XC-W
2017 Yamaha WR450F
2017 Yamaha YZ250FX
2017 Yamaha YZ450FX
2018 KTM 150 XC-W
2018 KTM 250 EXC-F
2018 KTM 250 XC-W
2018 KTM 250 XC-W TPi
2018 KTM 450 EXC-F
2018 Yamaha WR250F
2018 Yamaha WR450F
2018 Yamaha YZ250FX
2018 Yamaha YZ450FX
2019 KTM 150 XC-W
2019 KTM 250 EXC-F
2019 KTM 450 EXC-F
2019 Yamaha WR250F
2019 Yamaha YZ250FX
2020 Yamaha WR250F
2021 Yamaha WR250F
2022 Yamaha WR250F