Description
If you’re rebuilding a YZ80 or pushing your 2-stroke to the limit, a worn piston directly kills your power and efficiency. The Wiseco Piston Kit 569M05000 restores—or exceeds—OEM performance with precision-engineered components that handle high RPMs and aggressive riding conditions. This complete assembly gets you back on the track faster than sourcing individual parts.
What’s Included:
- Piston (51.00mm bore)
- Piston rings
- Wrist pin
- Circlips
Technical Specifications:
- Manufacturer: Wiseco
- Part Number: 569M05000
- Bore Size: 51.00mm
- Application: Yamaha YZ80
- Year Range: 1976–1980
- Engine Type: 2-stroke
- Material: Forged aluminum alloy
- Complete kit assembly
- Bolt-on installation









