Race Tech Fork Spring 0.48 kg/mm for Kawasaki KX450F, KX250 and Yamaha YZ125 – FRSP 444748

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.

Improve front-end balance, handling, and suspension predictability with the Race Tech Fork Spring 0.48 kg/mm. Designed for riders who need properly matched fork spring rates, this high-performance spring helps address the under-sprung feel commonly found on sport and motocross motorcycles. The spring is manufactured from chrome silicon wire for a high stiffness-to-mass ratio and consistent performance.

Each Race Tech fork spring is shot-peened and heat-treated to support long-term durability, accurate spring rates, and resistance to sacking out over time. The 0.48 kg/mm rate is engineered to provide dependable fork support and controlled suspension response when properly matched to rider weight, riding style, and motorcycle setup.

This Race Tech spring fits 2007–2012 Kawasaki KX450F models, 2005–2007 Kawasaki KX250 models, and the 2005 Yamaha YZ125. Manufacturer and vendor part number: FRSP 444748. Verify the motorcycle model year, required spring rate, and suspension configuration before installation.

Features:

• Spring Rate: 0.48 kg/mm
• Brand: Race Tech
• Manufacturer Part Number: FRSP 444748
• Vendor Part Number: FRSP 444748
• Material: Chrome silicon wire
• Construction: Shot-peened and heat-treated for durability
• Performance: High stiffness-to-mass ratio with accurate spring rates
• Durability: Designed to resist sacking out over time
• Fitment: 2007–2012 Kawasaki KX450F
• Fitment: 2005–2007 Kawasaki KX250
• Fitment: 2005 Yamaha YZ125

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