## Namura NX-20000R Piston Rings - Reliability and Performance for Your Engine Namura NX-20000R piston rings, designed for pistons with diameters of 53.95mm, 53.96mm, and 53.97mm, are a crucial component for optimal engine performance, efficiency, and longevity. Often overlooked, piston rings play a vital role in sealing the combustion chamber and controlling oil consumption. Namura, known for high-quality motorcycle and scooter parts, offers piston rings specifically engineered for their application. ### Advanced Materials and Technologies The selection of materials for piston ring manufacturing is critical to their performance. Namura utilizes carefully selected ductile cast iron or stainless steel alloys, characterized by excellent wear resistance and providing a tight seal. Additionally, depending on the model and application, the rings may be coated with chrome, phosphate, or nitride, further enhancing their durability and resistance to extreme operating conditions. ### Compression Rings Compression rings, made of highly ductile cast iron or stainless steel alloy, guarantee the sealing of the combustion chamber and minimize pressure loss. Chrome, phosphate, or nitride coatings further enhance their wear resistance. ### Oil Rings Oil rings consist of three components: two scraper rails made of highly ductile cast iron or stainless steel alloy, and a single expander ring made of stainless steel. Chrome, nitride, or phosphate coatings on the scraper rails ensure optimal oil control and prevent oil from entering the combustion chamber. By choosing Namura NX-20000R piston rings, you are investing in the reliability and performance of your engine.