Athena Piston Kit Cast Flat 53.94mm A-Spec (S4C05400016A)
- All pistons are cast using a precision heat-treatment process that allows for production tolerances of just .005mm
- Forged piston tooling allows for the lightest available product
- Kits include antiwear coated piston, rings, pin and circlip
- Made in Germany
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1997-2022 | Yamaha | YZ125 | |
| 2020-2022 | Yamaha | YZ125X | |