## Namura NA-10001-8R Piston Rings 87.98mm - Reliability and Performance for Your Engine Namura NA-10001-8R piston rings with a diameter of 87.98mm are a key component for ensuring optimal performance, efficiency, and longevity of your motorcycle or scooter engine. Often overlooked, piston rings play a fundamental 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-stroke). ### Compression Rings Made of highly ductile cast iron or stainless steel alloy, Namura compression rings offer excellent wear resistance and provide a tight seal for the combustion chamber. Additional coatings, such as chrome, phosphate, or nitride, enhance their durability and resistance to high temperatures and pressures. This guarantees optimal compression and minimizes power loss. ### Oil Rings The Namura oil ring set consists of three components: two scraper rails made of highly ductile cast iron or stainless steel alloy, coated with chrome, nitride, or phosphate, and one stainless steel expander ring. This design ensures efficient scraping of excess oil from the cylinder walls, preventing it from entering the combustion chamber and minimizing oil consumption. By choosing Namura NA-10001-8R piston rings, you are investing in quality and reliability, which translates to a longer lifespan and better performance for your engine.