- Spring kit contains springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves
- Spring kit comes complete for one motor
- Keepers are not included
- Made in the U.S.A.
- 0.375" Spring Lift
- 85 lb Spring Open Pressure
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1998-2000 | Yamaha | WR400F | |
| 2001-2002 | Yamaha | WR426F | |
| 1998-1999 | Yamaha | YZ400F | |
| 2000-2002 | Yamaha | YZ426F | |