Improve front-suspension balance and handling with the Race Tech Fork Spring 0.40 kg/mm, manufacturer part number FRSP 435140. Designed for riders who need accurate, consistent fork spring performance, this high-quality replacement spring helps provide more predictable suspension response than an under-sprung setup. The spring rate is engineered for motorcycle suspension tuning and is suitable for a range of compatible KTM applications.
Race Tech manufactures this fork spring from chrome silicon wire for a high stiffness-to-mass ratio and dependable performance. Each spring is shot-peened and heat treated to support long-term durability, while its accurate rate helps maintain consistent operation without premature sagging or “sacking out.” Proper spring selection is an important first step toward improved handling, rider confidence, and overall motorcycle balance.
This Race Tech 0.40 kg/mm fork spring fits the 2013 and 2014 KTM 500 XCF-W; 2005 and 2006 KTM 250 SX; 2006 KTM 250 SX-F; 2006 and 2007 KTM 250 XC; and 2007, 2008, and 2009 KTM 250 XC-W. Verify the motorcycle model, year, and required spring rate before installation. The vendor part number is 200-435140, and the manufacturer part number is FRSP 435140.
Features:
- Spring Rate: 0.40 kg/mm fork spring for suspension tuning
- Material: Chrome silicon wire for high stiffness and reliable performance
- Durability: Shot-peened and heat treated to resist fatigue
- Performance: Accurate spring rate for balanced, predictable handling
- Consistency: Designed to resist premature sagging or sacking out
- Fitment: Fits 2013-2014 KTM 500 XCF-W, 2005-2006 KTM 250 SX, 2006 KTM 250 SX-F, 2006-2007 KTM 250 XC, and 2007-2009 KTM 250 XC-W
- Brand: Race Tech
- Manufacturer Part Number: FRSP 435140
- Vendor Part Number: 200-435140
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