Wiseco Forged 77.00mm Piston & Top End Gasket Kit (PK1899)
- 13.5:1 Compression Ratio
- Stock Compression
- Standard Bore
- Non-Coated
- Includes high-quality piston ring(s), wrist pin(s), and circlips
- Designed and built for each specific 4-stroke powersports engine
- Improved tensile strength of forged material optimizes strength and service life
- Engineered, forged, and machined in the USA
- Wiseco ring types are not interchangeable (i.e., CD is not interchangeable with LC)
- Wiseco pistons can be fitted only with Wiseco rings
- Cylinder sleeves must be purchased separately.
- Fits Nikasil bore
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 2015-2017 | Yamaha | WR250F | |
| 2014-2015 | Yamaha | YZ250F | |
| 2015-2016 | Yamaha | YZ250FX | |