Description
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
| Position | Notes | |||
|---|---|---|---|---|
| 2003-2009 | Yamaha | YZ450F | - | - |
| 2003-2015 | Yamaha | WR450F | - | - |
| 2009-2023 | Yamaha | YFZ450R | - | - |
| 2004-2005 | Yamaha | YFZ 450 LE 4x2 | - | - |
| 2006-2007 | Yamaha | YFZ450 Bill Balance Edition | - | - |
| 2004-2009 | Yamaha | YFZ 450 X 4x2 | - | - |
| 2004-2009 | Yamaha | YFZ450 | - | - |
| 2009-2023 | Yamaha | YFZ450R SE | - | - |
| 2007-2008 | Yamaha | YFZ450 SE | - | - |
| 2006 | Yamaha | YFZ 450 SE 4x2 | - | - |
| 2013-2015 | Gas Gas | EC 450F | - | - |
