## Namura NA-50001-2R Piston Rings 80.45mm - Reliability and Performance Namura 80.45mm NA-50001-2R piston rings are a key element for optimal engine performance in your motorcycle or scooter. Often overlooked, piston rings play a fundamental role in ensuring efficiency, durability, and effective combustion. Namura, known for its high-quality engine components, delivers a product that meets the expectations of even the most demanding users. ### Materials and Construction Namura uses carefully selected materials in the production of NA-50001-2R piston rings, such as highly ductile cast iron or stainless steel alloy. Both materials are characterized by excellent wear resistance and provide a tight seal. In addition, depending on the model, chrome, phosphate, and nitride coatings are used to meet the specific requirements of a given engine. The type of cylinder sleeve, sleeve coating, engine size, and stroke (2 or 4) all influence the selection of the optimal ring composition. ### Compression Rings Compression rings, made of highly ductile cast iron or stainless steel alloy, guarantee the tightness of the combustion chamber, minimizing pressure loss and optimizing combustion. Additional chrome, phosphate, or nitride coatings enhance their durability and wear resistance. ### Oil Rings Oil rings consist of three components: two scraper rails made of highly ductile cast iron or stainless steel alloy, coated with chrome, nitride, or phosphate, and a single expander ring made of stainless steel. Their task is to effectively scrape excess oil from the cylinder walls, preventing it from entering the combustion chamber and ensuring optimal lubrication. ### Specifications: * Piston Diameter: 80.45mm By choosing Namura NA-50001-2R piston rings, you invest in the reliability and performance of your engine.