Wossner Pro Series forged 4-stroke piston kit built for strong ring seal, smoother break-in and quiet engine operation. Designed with friction-reducing skirt coating and improved wrist pin lubrication features for durability under load.
Built for dependable 4-stroke performance and longevity, the Wossner Pro Series Piston Kit is a forged aluminum alloy kit designed to deliver excellent ring seal, controlled oil use and a smoother, quieter-running engine. Thanks to its low-friction skirt coating and tight piston-wall clearance concept, it helps reduce mechanical noise and supports a clean break-in—ideal when you’re refreshing a top end or rebuilding for consistent power.
This kit also targets a common wear area on high-output engines: the wrist pin. With enhanced piston pin oiling slots, radial boss machining and annular grooves, lubrication around the pin is improved, helping reduce friction and extending service life in demanding riding conditions.
