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The Wiseco 105.61mm (4.158 in) top piston ring is a precise replacement for Wiseco 4‑stroke pistons, providing compression sealing and oil control. Manufactured to Wiseco’s specifications and tested for race‑ready performance, this top ring is intended for use when matching Wiseco pistons or during rebuilds that require accurate 105.61mm ring sizing and dependable sealing.
Wiseco 105.61mm (4.158inch) Top Ring Ring Shelf Stock
