## Namura NA-10001-6R Piston Rings 87.22mm - Reliability and Performance for Your Engine The Namura NA-10001-6R piston rings, with a diameter of 87.22mm, are a crucial component for ensuring optimal performance, efficiency, and longevity of your motorcycle or scooter engine. Often overlooked, piston rings play a vital role in sealing the combustion chamber and controlling oil consumption. ### Advanced Materials and Technologies Namura, a renowned manufacturer of motorcycle parts, uses the highest quality materials and advanced technologies in the production of piston rings. The use of ductile iron or stainless steel, combined with chrome, phosphate, or nitride coatings, guarantees excellent wear resistance and sealing performance. ### Compression Rings The compression rings, made of ductile iron or stainless steel, provide a tight seal for the combustion chamber, maximizing compression and engine power. Additional coatings, such as chrome, phosphate, or nitride, enhance wear and corrosion resistance, extending the life of the rings. ### Oil Control Rings The oil control ring set consists of three components: two scraper rings made of ductile iron or stainless steel, coated with chrome, nitride, or phosphate, and a single expander ring made of stainless steel. This design effectively controls the amount of oil on the cylinder walls, minimizing oil consumption and emissions. ### Precise Fit The Namura NA-10001-6R piston rings are designed for a precise fit in cylinders with a diameter of 87.22mm. Proper selection of piston rings is crucial for ensuring optimal performance and engine longevity. By choosing Namura piston rings, you are investing in quality and reliability, ensuring long-lasting and trouble-free operation for your motorcycle or scooter.