- Computer Numerical Control (CNC) from 8620 billet steel and case harden
- Designed with Improved Throttle Response (I.T.R.) technology
- Includes decompression mechanism
- Uses stock valve springs
- For dual cam engine.
- Cam valve lash is 0.205 mm.
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2019-2020 | Yamaha | YZ250F | |
| 2020-2021 | Yamaha | YZ250FX | |