## Piston Rings 68.95mm Namura NA-10025-2R - Reliability and Performance Piston rings, often overlooked, are a crucial element influencing the performance, durability, and efficiency of an engine. Namura NA-10025-2R with a diameter of 68.95mm guarantees the highest quality and precision, ensuring optimal operation of your motorcycle or scooter engine. ### Advanced Materials and Technologies The Namura brand is known for its attention to detail and the use of innovative solutions. The NA-10025-2R piston rings are designed for specific applications, taking into account the type of cylinder sleeve, its coating, engine size, and stroke type (2 or 4). The selection of appropriate materials and coatings guarantees a perfect fit and long-lasting performance under all conditions. ### Compression Rings Made of highly ductile cast iron or stainless steel alloy, the compression rings are characterized by excellent wear resistance and provide a tight seal. Additional chrome, phosphate, or nitride coatings increase their durability and corrosion resistance. ### Oil Control Rings The oil control ring set consists of three elements: two scraper rails made of highly ductile cast iron or stainless steel, coated with chrome, nitride, or phosphate, and one expander ring made of stainless steel. This design ensures efficient oil scraping, minimizing oil consumption and preventing it from entering the combustion chamber. ### Namura Brand - Synonym for Quality By choosing Namura NA-10025-2R piston rings, you are investing in proven quality and reliability. Precision manufacturing, the selection of appropriate materials, and advanced production technologies guarantee long-lasting and trouble-free operation of your engine.