## Namura NA-40080-2R Piston Rings 47.46mm - An Essential Component for Engine Efficiency Namura NA-40080-2R piston rings, with a diameter of 47.46mm, are a key component for ensuring optimal performance, efficiency, and longevity of your motorcycle or scooter engine. Often overlooked, piston rings play a vital role in maintaining combustion chamber seal and proper lubrication. Namura, a renowned manufacturer of motorcycle parts, designs its rings for specific applications, taking into account the type of cylinder sleeve, its coating, engine size, and stroke type (2 or 4). ### Highest Quality Materials and Precision Manufacturing The materials used in the production of Namura piston rings are one of the most important factors influencing their performance. Both compression and oil rings are made of high-quality alloys, ensuring excellent wear resistance and sealing. ### Compression Rings Made of highly ductile cast iron or stainless steel alloy, the compression rings guarantee excellent combustion chamber sealing. Additionally, chrome, phosphate, and nitride coatings increase their resistance to wear and corrosion. ### Oil Rings The oil ring set consists of three components: two scraper rings made of highly ductile cast iron or stainless steel alloy, coated with chrome, nitride, or phosphate, and one expander ring made of stainless steel. They provide precise oil metering, minimizing oil consumption and preventing it from entering the combustion chamber. ### Specifications: * Piston Diameter: 47.46mm * Brand: Namura By choosing Namura NA-40080-2R piston rings, you are investing in quality and reliability, which translates into longer engine life and better performance.