WOSSNER replacement piston ring set for 2-stroke engines, sized for a 66.40 mm bore to help restore compression and crisp power delivery during a top-end refresh.
Bring your 2-stroke back to strong, consistent performance with this WOSSNER piston ring set, designed as a direct replacement for engines using a 66.40 mm bore piston. Fresh rings help re-establish proper sealing between the piston and cylinder, which is essential for healthy compression, easier starting, and cleaner throttle response.
Whether you're doing scheduled maintenance or addressing signs of wear like reduced power and blow-by, replacing piston rings during a top-end service is a smart way to keep your engine running efficiently and reliably.
