Description
The Wiseco YZ85 ring set maintains precise compression sealing across your entire power band, preventing blow-by losses that rob horsepower and degrade oil quality. Whether you’re freshening a stock rebuild or optimizing a modified top-end, this ring set delivers the durability and sealing consistency that separates competitive engines from unreliable ones. Designed as a direct OEM replacement, installation is straightforward—no custom fabrication required.
- Bore size: 49.50mm
- Fitment: YZ85 2002-2024
- Ring quantity: Single piston
- Material: High-grade steel
- Design: Precision-engineered
- Installation: Bolt-on compatible
- Performance benefit: Enhanced compression
- Blow-by: Minimized sealing loss
- Durability: Rigorous testing verified
- MPN: 1949CS









