## Namura NA-50001R Piston Rings 79.95mm - Reliability and Performance Namura NA-50001R piston rings with a diameter of 79.95mm are a key element for optimal engine performance in your motorcycle or scooter. Often overlooked, piston rings play a vital role in ensuring engine efficiency, durability, and sealing. 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). ### Key Features of Namura Piston Rings: * **Precise fit:** The 79.95mm diameter guarantees a perfect fit to the cylinder, minimizing compression losses and ensuring maximum performance. * **High-quality materials:** The use of durable cast iron or stainless steel alloy provides excellent wear resistance and long-lasting operation. * **Advanced coatings:** Chrome, phosphate, or nitride coatings further strengthen the rings, protecting them from corrosion and increasing their lifespan. * **Excellent sealing:** Namura rings provide a tight seal for the combustion chamber, which translates into higher compression and better performance. ### Compression Rings: Made of highly ductile cast iron or stainless steel alloy, compression rings are characterized by excellent wear resistance and provide a gas-tight seal. Chrome, phosphate, and nitride coatings further enhance their durability and corrosion resistance. ### Oil Rings: The oil ring set consists of three components: two scraper rails made of highly ductile cast iron or stainless steel, and one expander ring made of stainless steel. Chrome, nitride, or phosphate coatings ensure optimal lubrication and prevent excessive cylinder wear. By choosing Namura NA-50001R piston rings, you invest in quality and reliability, providing your engine with optimal operating conditions.