Improve front-end control and handling consistency with the Race Tech Fork Spring 0.42 kg/mm, manufacturer part number FRSP 435142 and vendor part number 200-435142. Designed for riders who need a properly matched suspension rate, this high-performance fork spring helps create a more balanced and predictable motorcycle. It is a suitable upgrade for sport and off-road applications where the original spring rate may be too soft for the rider, terrain, or riding style.
Manufactured by Race Tech, the spring is made from chrome silicon wire for a high stiffness-to-mass ratio and dependable performance. It is shot-peened and heat treated to support long-term durability, accurate spring rates, and resistance to sagging or “sacking out” under repeated use. Proper spring selection is an important foundation for suspension tuning, and the 0.42 kg/mm rate provides a targeted option for riders seeking improved fork support without unnecessary weight.
This Race Tech fork spring fits select KTM models, including the 2013 and 2014 KTM 500 XCF-W; 2005 KTM 250 SX; 2006 KTM 250 SX, 250 SX-F, and 250 XC; and 2007 through 2009 KTM 250 XC and 250 XC-W models as specified by the application list. Verify the motorcycle model year and suspension specifications before installation. Professional installation and suspension setup are recommended to ensure proper fitment, preload, and performance.
Features:
- 0.42 kg/mm fork spring rate for targeted suspension tuning
- Race Tech high-performance spring construction
- Made from chrome silicon wire
- High stiffness-to-mass ratio for responsive suspension performance
- Shot-peened and heat treated for durability
- Accurate spring rate helps improve handling balance and predictability
- Designed to resist sagging and loss of performance under repeated use
- Fits select KTM 500 XCF-W, 250 SX, 250 SX-F, 250 XC, and 250 XC-W models
Fitment:
2003 KTM 450 EXC-F
2004 KTM 450 EXC-F
2005 KTM 125 SX
2005 KTM 200 Exc
2005 KTM 250 EXC
2005 KTM 250 SX
2005 KTM 300 EXC
2005 KTM 300 MXC
2005 KTM 450 EXC-F
2005 KTM 450 MXC 4-Stroke
2005 KTM 525 MXC 4-Stroke
2005 KTM 525 SX 4-Stroke
2005 Suzuki DR-Z400E CA Model
2005 Suzuki DR-Z400E Non CA Model
2005 Suzuki DR-Z400S
2006 KTM 125 SX
2006 KTM 200 Xc
2006 KTM 200 Xc-W
2006 KTM 250 SX
2006 KTM 250 SX-F
2006 KTM 250 XC
2006 KTM 300 XC
2006 KTM 300 XC-W
2006 KTM 450 EXC-F
2006 KTM 525 EXC-G Racing
2006 KTM 525 SX 4-Stroke
2006 Suzuki DR-Z400E CA Model
2006 Suzuki DR-Z400E Non CA Model
2006 Suzuki DR-Z400S
2007 KTM 200 Xc
2007 KTM 200 Xc-W
2007 KTM 250 XC
2007 KTM 250 XC-F
2007 KTM 250 XC-W
2007 KTM 250 XCF-W
2007 KTM 300 XC
2007 KTM 300 XC-W
2007 KTM 400 XC-W 4-Stroke
2007 KTM 450 EXC-F
2007 KTM 450 XCF-W
2007 KTM 525 EXC 4-Stroke
2007 KTM 525 XC-G 4-Stroke
2007 KTM 525 XC-W 4-Stroke
2007 Suzuki DR-Z400E CA Model
2007 Suzuki DR-Z400E Non CA Model
2007 Suzuki DR-Z400S
2008 KTM 200 Xc-W
2008 KTM 250 XC-W
2008 KTM 250 XCF-W
2008 KTM 300 XC-W
2008 KTM 450 XCF-W
2008 KTM 530 XC-W 4-Stroke
2008 KTM 950 Super Enduro R
2008 KTM 990 Adventure 4-Stroke
2008 Suzuki DR-Z400S
2009 KTM 200 Xc-W
2009 KTM 250 XC-W
2009 KTM 250 XCF-W
2009 KTM 300 XC-W
2009 KTM 400 XC-W 4-Stroke
2009 KTM 450 XCF-W
2009 KTM 530 XC-W 4-Stroke
2009 KTM 950 Super Enduro R
2009 KTM 990 Adventure
2009 Suzuki DR-Z400S
2010 KTM 200 Xc-W
2010 KTM 250 XC-W
2010 KTM 300 XC-W
2010 KTM 400 XC-W 4-Stroke
2010 KTM 450 EXC-R 4-Stroke
2010 KTM 450 XCF-W
2010 Suzuki DR-Z400S
2011 KTM 200 Xc-W
2011 KTM 250 XC-W
2011 KTM 300 XC-W
2011 KTM 450 EXC-R 4-Stroke
2011 KTM 450 XCF-W
2011 Suzuki DR-Z400S
2012 KTM 200 Xc-W
2012 KTM 250 XC-W
2012 KTM 300 XC-W
2012 KTM 450 XCF-W
2012 Suzuki DR-Z400S
2013 KTM 200 Xc-W
2013 KTM 250 XC-W
2013 KTM 300 XC-W
2013 KTM 450 XCF-W
2013 KTM 500 XCF-W
2013 Suzuki DR-Z400S
2014 KTM 200 Xc-W
2014 KTM 250 XC-W
2014 KTM 300 XC-W
2014 KTM 450 XCF-W
2014 KTM 500 XCF-W
2014 Sherco 250 SE-R Racing
2014 Sherco 250 SEF-R Racing
2014 Sherco 300 SE-R Racing
2014 Sherco 300 SEF-R Racing
2014 Suzuki DR-Z400S
2015 KTM 200 Xc-W
2015 KTM 250 XC-W
2015 KTM 300 XC-W
2015 KTM 450 XCF-W
2015 KTM 500 XCF-W
2015 Sherco 250 SE-R Racing
2015 Sherco 250 SEF-R Racing
2015 Sherco 300 SE-R Racing
2015 Sherco 300 SEF-R Racing
2015 Sherco 450 SEF-R Racing
2015 Suzuki DR-Z400S
2016 KTM 200 Xc-W
2016 KTM 250 XC-W
2016 KTM 300 XC-W
2016 KTM 450 XCF-W
2016 KTM 500 XCF-W
2016 Suzuki DR-Z400S
2017 Sherco 250 SC Cross Country
2017 Sherco 250 SC-F Cross Country
2017 Sherco 300 SC Cross Country
2017 Sherco 300 SC-F Cross Country
2017 Suzuki DR-Z400S
2018 Suzuki DR-Z400S
2019 Suzuki DR-Z400S
2020 Suzuki DR-Z400S
2021 Suzuki DR-Z400S
2022 Suzuki DR-Z400S
2023 Suzuki DR-Z400S
2024 Suzuki DR-Z400S