- High-performance racing camshaft
- Stage 1 cams deliver more torque
- 105° exhaust cam lobe center
- 259° exhaust cam lobe duration at 1mm
- 8.760mm exhaust cam lobe lift
- 0.200mm exhaust cam valve lash
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1998-2000 | Yamaha | WR400F | |
| 2001-2002 | Yamaha | WR426F | |
| 1998-1999 | Yamaha | YZ400F | |
| 2000-2002 | Yamaha | YZ426F | |