Product description
The Prox Valve & Spring Kit For Gas Gas EC 250 2010-2011 Exhaust - Steel is part of the latest collection from Prox.
Features:
- Replaces the OEM valves and valve springs
- Steel, nitrided valves for increased durability and less wear under extreme conditions
- Stronger valve springs deal with the extra weight of the steel valves
- Springs are made from premium chrome vanadium steel for higher performance and durability at high rpm
- Kit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM retainers, bases and valve seals
Specifications:
- Application: Exhaust
- Color/Finish: Steel
- Material: Steel
- Product Name: Valve and Spring Kit
- Units: Kit
To fit:
- GAS GAS EC 250 4T 2010 All Models
- GAS GAS EC 250 4T 2011 All Models
- GAS GAS EC 250 E 2011 All Models
- GAS GAS EC 250 F 2012 Sixdays All Models
- GAS GAS EC 250 F 2012 All Models
- GAS GAS EC 250 F 2013 All Models
- GAS GAS EC 250 F 2014 Cami All Models
- GAS GAS EC 250 F 2014 Racing All Models
- GAS GAS EC 250 F 2015 Racing All Models
- GAS GAS EC 250 RACING 2010 All Models
- GAS GAS EC 250 RACING 2011 All Models
- GAS GAS EC 250 SIXDAYS 2010 All Models
- GAS GAS EC 250 SIXDAYS 2011 All Models
- GAS GAS EC 250 2010 All Models
- GAS GAS EC 250 2011 All Models
- GAS GAS EC 300 F 2013 All Models
- GAS GAS EC 300 F 2014 Racing All Models
- GAS GAS EC 300 F 2015 Racing All Models
- YAMAHA WR 250 F 2001 American Models
- YAMAHA WR 250 F 2001 European Models
- YAMAHA WR 250 F 2002 American Models
- YAMAHA WR 250 F 2002 European Models
- YAMAHA WR 250 F 2003 American Models
- YAMAHA WR 250 F 2003 European Models
- YAMAHA WR 250 F 2004 American Models
- YAMAHA WR 250 F 2004 European Models
- YAMAHA WR 250 F 2005 American Models
- YAMAHA WR 250 F 2005 European Models
- YAMAHA WR 250 F 2006 American Models
- YAMAHA WR 250 F 2006 European Models
- YAMAHA WR 250 F 2007 American Models
- YAMAHA WR 250 F 2007 European Models
- YAMAHA WR 250 F 2008 American Models
- YAMAHA WR 250 F 2008 European Models
- YAMAHA WR 250 F 2009 American Models
- YAMAHA WR 250 F 2009 European Models
- YAMAHA WR 250 F 2010 American Models
- YAMAHA WR 250 F 2010 European Models
- YAMAHA WR 250 F 2011 American Models
- YAMAHA WR 250 F 2011 European Models
- YAMAHA WR 250 F 2012 American Models
- YAMAHA WR 250 F 2012 European Models
- YAMAHA WR 250 F 2013 American Models
- YAMAHA WR 250 F 2013 European Models
- YAMAHA YZ 250 F 2001 American Models
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models
- YAMAHA YZ 250 F 2005 American Models
- YAMAHA YZ 250 F 2005 European Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition American Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition European Models
- YAMAHA YZ 250 F 2006 American Models
- YAMAHA YZ 250 F 2006 European Models
- YAMAHA YZ 250 F 2007 American Models
- YAMAHA YZ 250 F 2007 European Models
- YAMAHA YZ 250 F 2008 American Models
- YAMAHA YZ 250 F 2008 European Models
- YAMAHA YZ 250 F 2009 American Models
- YAMAHA YZ 250 F 2009 European Models
- YAMAHA YZ 250 F 2010 American Models
- YAMAHA YZ 250 F 2010 European Models
- YAMAHA YZ 250 F 2011 American Models
- YAMAHA YZ 250 F 2011 European Models
- YAMAHA YZ 250 F 2012 American Models
- YAMAHA YZ 250 F 2012 European Models
- YAMAHA YZ 250 F 2013 American Models
- YAMAHA YZ 250 F 2013 European Models
Manufacturer part number: 28.SES2402-1
View all Prox. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Prox Valve & Spring Kit For Gas Gas EC 250 2010-2011 Exhaust - Steel
To fit:
- GAS GAS EC 250 4T 2010 All Models
- GAS GAS EC 250 4T 2011 All Models
- GAS GAS EC 250 E 2011 All Models
- GAS GAS EC 250 F 2012 Sixdays All Models
- GAS GAS EC 250 F 2012 All Models
- GAS GAS EC 250 F 2013 All Models
- GAS GAS EC 250 F 2014 Cami All Models
- GAS GAS EC 250 F 2014 Racing All Models
- GAS GAS EC 250 F 2015 Racing All Models
- GAS GAS EC 250 RACING 2010 All Models
- GAS GAS EC 250 RACING 2011 All Models
- GAS GAS EC 250 SIXDAYS 2010 All Models
- GAS GAS EC 250 SIXDAYS 2011 All Models
- GAS GAS EC 250 2010 All Models
- GAS GAS EC 250 2011 All Models
- GAS GAS EC 300 F 2013 All Models
- GAS GAS EC 300 F 2014 Racing All Models
- GAS GAS EC 300 F 2015 Racing All Models
- YAMAHA WR 250 F 2001 American Models
- YAMAHA WR 250 F 2001 European Models
- YAMAHA WR 250 F 2002 American Models
- YAMAHA WR 250 F 2002 European Models
- YAMAHA WR 250 F 2003 American Models
- YAMAHA WR 250 F 2003 European Models
- YAMAHA WR 250 F 2004 American Models
- YAMAHA WR 250 F 2004 European Models
- YAMAHA WR 250 F 2005 American Models
- YAMAHA WR 250 F 2005 European Models
- YAMAHA WR 250 F 2006 American Models
- YAMAHA WR 250 F 2006 European Models
- YAMAHA WR 250 F 2007 American Models
- YAMAHA WR 250 F 2007 European Models
- YAMAHA WR 250 F 2008 American Models
- YAMAHA WR 250 F 2008 European Models
- YAMAHA WR 250 F 2009 American Models
- YAMAHA WR 250 F 2009 European Models
- YAMAHA WR 250 F 2010 American Models
- YAMAHA WR 250 F 2010 European Models
- YAMAHA WR 250 F 2011 American Models
- YAMAHA WR 250 F 2011 European Models
- YAMAHA WR 250 F 2012 American Models
- YAMAHA WR 250 F 2012 European Models
- YAMAHA WR 250 F 2013 American Models
- YAMAHA WR 250 F 2013 European Models
- YAMAHA YZ 250 F 2001 American Models
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models
- YAMAHA YZ 250 F 2005 American Models
- YAMAHA YZ 250 F 2005 European Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition American Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition European Models
- YAMAHA YZ 250 F 2006 American Models
- YAMAHA YZ 250 F 2006 European Models
- YAMAHA YZ 250 F 2007 American Models
- YAMAHA YZ 250 F 2007 European Models
- YAMAHA YZ 250 F 2008 American Models
- YAMAHA YZ 250 F 2008 European Models
- YAMAHA YZ 250 F 2009 American Models
- YAMAHA YZ 250 F 2009 European Models
- YAMAHA YZ 250 F 2010 American Models
- YAMAHA YZ 250 F 2010 European Models
- YAMAHA YZ 250 F 2011 American Models
- YAMAHA YZ 250 F 2011 European Models
- YAMAHA YZ 250 F 2012 American Models
- YAMAHA YZ 250 F 2012 European Models
- YAMAHA YZ 250 F 2013 American Models
- YAMAHA YZ 250 F 2013 European Models

ProX is a Dutch brand specialising in high-quality replacement parts for motorcycles, motocross, ATVs, and other powersports vehicles. Their range includes pistons, connecting rods, clutch components, bearings, and valves, all manufactured to OEM standards. ProX parts are trusted worldwide for durability, precision, and performance, making them a go-to choice for riders.
Product description
The Prox Valve & Spring Kit For Gas Gas EC 250 2010-2011 Exhaust - Steel is part of the latest collection from Prox.
Features:
- Replaces the OEM valves and valve springs
- Steel, nitrided valves for increased durability and less wear under extreme conditions
- Stronger valve springs deal with the extra weight of the steel valves
- Springs are made from premium chrome vanadium steel for higher performance and durability at high rpm
- Kit contains a set of steel intake or exhaust valves plus a set of specially designed valve springs; can be installed using the OEM retainers, bases and valve seals
Specifications:
- Application: Exhaust
- Color/Finish: Steel
- Material: Steel
- Product Name: Valve and Spring Kit
- Units: Kit
To fit:
- GAS GAS EC 250 4T 2010 All Models
- GAS GAS EC 250 4T 2011 All Models
- GAS GAS EC 250 E 2011 All Models
- GAS GAS EC 250 F 2012 Sixdays All Models
- GAS GAS EC 250 F 2012 All Models
- GAS GAS EC 250 F 2013 All Models
- GAS GAS EC 250 F 2014 Cami All Models
- GAS GAS EC 250 F 2014 Racing All Models
- GAS GAS EC 250 F 2015 Racing All Models
- GAS GAS EC 250 RACING 2010 All Models
- GAS GAS EC 250 RACING 2011 All Models
- GAS GAS EC 250 SIXDAYS 2010 All Models
- GAS GAS EC 250 SIXDAYS 2011 All Models
- GAS GAS EC 250 2010 All Models
- GAS GAS EC 250 2011 All Models
- GAS GAS EC 300 F 2013 All Models
- GAS GAS EC 300 F 2014 Racing All Models
- GAS GAS EC 300 F 2015 Racing All Models
- YAMAHA WR 250 F 2001 American Models
- YAMAHA WR 250 F 2001 European Models
- YAMAHA WR 250 F 2002 American Models
- YAMAHA WR 250 F 2002 European Models
- YAMAHA WR 250 F 2003 American Models
- YAMAHA WR 250 F 2003 European Models
- YAMAHA WR 250 F 2004 American Models
- YAMAHA WR 250 F 2004 European Models
- YAMAHA WR 250 F 2005 American Models
- YAMAHA WR 250 F 2005 European Models
- YAMAHA WR 250 F 2006 American Models
- YAMAHA WR 250 F 2006 European Models
- YAMAHA WR 250 F 2007 American Models
- YAMAHA WR 250 F 2007 European Models
- YAMAHA WR 250 F 2008 American Models
- YAMAHA WR 250 F 2008 European Models
- YAMAHA WR 250 F 2009 American Models
- YAMAHA WR 250 F 2009 European Models
- YAMAHA WR 250 F 2010 American Models
- YAMAHA WR 250 F 2010 European Models
- YAMAHA WR 250 F 2011 American Models
- YAMAHA WR 250 F 2011 European Models
- YAMAHA WR 250 F 2012 American Models
- YAMAHA WR 250 F 2012 European Models
- YAMAHA WR 250 F 2013 American Models
- YAMAHA WR 250 F 2013 European Models
- YAMAHA YZ 250 F 2001 American Models
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models
- YAMAHA YZ 250 F 2005 American Models
- YAMAHA YZ 250 F 2005 European Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition American Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition European Models
- YAMAHA YZ 250 F 2006 American Models
- YAMAHA YZ 250 F 2006 European Models
- YAMAHA YZ 250 F 2007 American Models
- YAMAHA YZ 250 F 2007 European Models
- YAMAHA YZ 250 F 2008 American Models
- YAMAHA YZ 250 F 2008 European Models
- YAMAHA YZ 250 F 2009 American Models
- YAMAHA YZ 250 F 2009 European Models
- YAMAHA YZ 250 F 2010 American Models
- YAMAHA YZ 250 F 2010 European Models
- YAMAHA YZ 250 F 2011 American Models
- YAMAHA YZ 250 F 2011 European Models
- YAMAHA YZ 250 F 2012 American Models
- YAMAHA YZ 250 F 2012 European Models
- YAMAHA YZ 250 F 2013 American Models
- YAMAHA YZ 250 F 2013 European Models
Manufacturer part number: 28.SES2402-1
View all Prox. View all Parts and spares.
Contents
Your package will include the following:
- 1 X Prox Valve & Spring Kit For Gas Gas EC 250 2010-2011 Exhaust - Steel
To fit:
- GAS GAS EC 250 4T 2010 All Models
- GAS GAS EC 250 4T 2011 All Models
- GAS GAS EC 250 E 2011 All Models
- GAS GAS EC 250 F 2012 Sixdays All Models
- GAS GAS EC 250 F 2012 All Models
- GAS GAS EC 250 F 2013 All Models
- GAS GAS EC 250 F 2014 Cami All Models
- GAS GAS EC 250 F 2014 Racing All Models
- GAS GAS EC 250 F 2015 Racing All Models
- GAS GAS EC 250 RACING 2010 All Models
- GAS GAS EC 250 RACING 2011 All Models
- GAS GAS EC 250 SIXDAYS 2010 All Models
- GAS GAS EC 250 SIXDAYS 2011 All Models
- GAS GAS EC 250 2010 All Models
- GAS GAS EC 250 2011 All Models
- GAS GAS EC 300 F 2013 All Models
- GAS GAS EC 300 F 2014 Racing All Models
- GAS GAS EC 300 F 2015 Racing All Models
- YAMAHA WR 250 F 2001 American Models
- YAMAHA WR 250 F 2001 European Models
- YAMAHA WR 250 F 2002 American Models
- YAMAHA WR 250 F 2002 European Models
- YAMAHA WR 250 F 2003 American Models
- YAMAHA WR 250 F 2003 European Models
- YAMAHA WR 250 F 2004 American Models
- YAMAHA WR 250 F 2004 European Models
- YAMAHA WR 250 F 2005 American Models
- YAMAHA WR 250 F 2005 European Models
- YAMAHA WR 250 F 2006 American Models
- YAMAHA WR 250 F 2006 European Models
- YAMAHA WR 250 F 2007 American Models
- YAMAHA WR 250 F 2007 European Models
- YAMAHA WR 250 F 2008 American Models
- YAMAHA WR 250 F 2008 European Models
- YAMAHA WR 250 F 2009 American Models
- YAMAHA WR 250 F 2009 European Models
- YAMAHA WR 250 F 2010 American Models
- YAMAHA WR 250 F 2010 European Models
- YAMAHA WR 250 F 2011 American Models
- YAMAHA WR 250 F 2011 European Models
- YAMAHA WR 250 F 2012 American Models
- YAMAHA WR 250 F 2012 European Models
- YAMAHA WR 250 F 2013 American Models
- YAMAHA WR 250 F 2013 European Models
- YAMAHA YZ 250 F 2001 American Models
- YAMAHA YZ 250 F 2001 European Models
- YAMAHA YZ 250 F 2002 American Models
- YAMAHA YZ 250 F 2002 European Models
- YAMAHA YZ 250 F 2003 American Models
- YAMAHA YZ 250 F 2003 European Models
- YAMAHA YZ 250 F 2004 American Models
- YAMAHA YZ 250 F 2004 European Models
- YAMAHA YZ 250 F 2005 American Models
- YAMAHA YZ 250 F 2005 European Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition American Models
- YAMAHA YZ 250 F 2006 50th Anniversary Limited Edition European Models
- YAMAHA YZ 250 F 2006 American Models
- YAMAHA YZ 250 F 2006 European Models
- YAMAHA YZ 250 F 2007 American Models
- YAMAHA YZ 250 F 2007 European Models
- YAMAHA YZ 250 F 2008 American Models
- YAMAHA YZ 250 F 2008 European Models
- YAMAHA YZ 250 F 2009 American Models
- YAMAHA YZ 250 F 2009 European Models
- YAMAHA YZ 250 F 2010 American Models
- YAMAHA YZ 250 F 2010 European Models
- YAMAHA YZ 250 F 2011 American Models
- YAMAHA YZ 250 F 2011 European Models
- YAMAHA YZ 250 F 2012 American Models
- YAMAHA YZ 250 F 2012 European Models
- YAMAHA YZ 250 F 2013 American Models
- YAMAHA YZ 250 F 2013 European Models

ProX is a Dutch brand specialising in high-quality replacement parts for motorcycles, motocross, ATVs, and other powersports vehicles. Their range includes pistons, connecting rods, clutch components, bearings, and valves, all manufactured to OEM standards. ProX parts are trusted worldwide for durability, precision, and performance, making them a go-to choice for riders.
































