Description
- Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason
- Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression
- Specifically designed for the pro, semi-pro and amateur rider
- Freshens up their engine prior to a race or during mid-season
- Kits do not include valve stem seals, rubber part, shims or other fiber gaskets
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2007-2009 | Yamaha | WR450F | |
| 2011-2014 | Yamaha | WR450F | |
| 2009-2020 | Yamaha | YFZ450R | |
| 2016 | Yamaha | YFZ450R Special Edition | |
| 2017-2020 | Yamaha | YFZ450RSE | |
| 2009-2015 | Yamaha | YFZ450RSE Special Edition | |
| 2010 | Yamaha | YFZ450X | |
| 2010 | Yamaha | YFZ450X Bill Balance Edition | |
| 2006-2009 | Yamaha | YZ450F |
