Description
Features
- Compatible with boosted or turbocharged applications
- Designed with increased spring rates and high lift compatibility compared to the stock springs
- CNC-machined titanium or H.T. (Heat Treated) Steel retainers and Cr-Si (Chromium Silicon) alloy dual springs provide valvetrain control at high rpms with high-performance camshaft capability
- Made in the USA
| Position | Notes | |||
|---|---|---|---|---|
| 2008-2009 | Yamaha | YFZ 450 X 4x2 | - | - |
| 2010-2011 | Yamaha | YFZ450X | - | - |
| 2003-2009 | Yamaha | YZ450F | - | - |
| 2009-2023 | Yamaha | YFZ450R | - | - |
| 2010-2023 | Yamaha | YFZ450R SE | - | - |
| 2004-2009 | Yamaha | YFZ450 | - | - |
| 2003-2015 | Yamaha | WR450F | - | - |
