Improve front-end control and suspension predictability with the Race Tech Fork Spring 0.40 kg/mm. Designed for off-road and motocross applications, this high-performance fork spring helps provide a more balanced suspension setup than the original equipment spring on many motorcycles. Its accurate spring rate supports consistent handling and rider confidence across changing terrain and riding conditions.
Manufactured by Race Tech from chrome silicon wire, the FRSP 434940 spring offers a high stiffness-to-mass ratio for responsive suspension performance. Each spring is shot-peened and heat treated to improve durability and resistance to fatigue, helping maintain its intended rate during extended use. The no-sacking-out design helps the spring retain consistent performance over time.
This Race Tech 0.40 kg/mm fork spring is designed to fit the 2002–2008 Honda CRF450R and the 2004–2006 Honda CRF250R. Verify the motorcycle model year and suspension requirements before installation to ensure the spring rate is appropriate for the rider, motorcycle setup, and intended use. Manufacturer part number: FRSP 434940. Vendor part number: 200-434940.
Features:
- Spring rate: 0.40 kg/mm for improved front suspension balance and handling
- Material: Chrome silicon wire for high-performance suspension applications
- Construction: High stiffness-to-mass ratio for responsive fork performance
- Durability: Shot-peened and heat treated to resist fatigue and maintain spring performance
- Consistency: Accurate spring rate with no sacking-out for dependable long-term use
- Fitment: 2002–2008 Honda CRF450R and 2004–2006 Honda CRF250R
- Brand: Race Tech
- Manufacturer part number: FRSP 434940
- Vendor part number: 200-434940
Fitment:
2000 Honda CR250R
2001 Honda CR250R
2002 Honda CR250R
2002 Honda CRF450R
2003 Honda CR250R
2003 Honda CRF450R
2004 Honda CR250R
2004 Honda CRF250R
2004 Honda CRF250X
2004 Honda CRF450R
2004 Suzuki RM125
2005 Honda CR250R
2005 Honda CRF250R
2005 Honda CRF250X
2005 Honda CRF450R
2005 Suzuki RM-Z450
2005 Suzuki RM125
2005 Suzuki RM250
2006 Honda CR250R
2006 Honda CRF250R
2006 Honda CRF250X
2006 Honda CRF450R
2006 Honda CRF450X
2006 Kawasaki KX250F
2006 Suzuki RM-Z450
2006 Suzuki RM125
2006 Suzuki RM250
2007 Honda CR250R
2007 Honda CRF250R
2007 Honda CRF250X
2007 Honda CRF450R
2007 Honda CRF450X
2007 Kawasaki KX250F
2007 Suzuki RM-Z250
2007 Suzuki RM-Z450
2007 Suzuki RM125
2007 Suzuki RM250
2008 Honda CRF250R
2008 Honda CRF250X
2008 Honda CRF450R
2008 Honda CRF450X
2008 Kawasaki KX250F
2008 KTM 450 EXC-R 4-Stroke
2008 KTM 505 Sx-F
2008 KTM 505 Xc-F
2008 KTM 530 EXC-R 4-Stroke
2008 KTM 560 SMR 4-Stroke
2008 Suzuki RM-Z250
2008 Suzuki RM-Z450
2008 Suzuki RM125
2008 Suzuki RM250
2009 Honda CRF250R
2009 Honda CRF250X
2009 Honda CRF450X
2009 Kawasaki KX250F
2009 KTM 450 EXC-R 4-Stroke
2009 KTM 505 Sx-F
2009 KTM 505 Xc-F
2009 KTM 530 EXC-R 4-Stroke
2009 Suzuki RM-Z250
2009 Suzuki RM-Z450
2010 Honda CRF250X
2010 Kawasaki KX250F
2010 Suzuki RM-Z250
2010 Suzuki RM-Z450
2011 Honda CRF250X
2011 Suzuki RM-Z250
2011 Suzuki RM-Z450
2012 Honda CRF250X
2012 Honda CRF450X
2012 Suzuki RM-Z250
2012 Suzuki RM-Z450
2013 Honda CRF250X
2013 Honda CRF450X
2014 Honda CRF450X
2015 Honda CRF250X
2015 Honda CRF450X
2016 Honda CRF250X
2016 Honda CRF450X
2017 Honda CRF250X
2017 Honda CRF450X
2018 Honda CRF450X