## Namura NX-10200-2R Piston Rings 65.97mm - Reliability and Performance for Your Engine The Namura NX-10200-2R piston rings, with a diameter of 65.97mm, are a crucial component for ensuring optimal performance, efficiency, and longevity of your motorcycle or scooter engine. Often overlooked, these rings play a fundamental role in sealing the combustion chamber and controlling oil consumption. Namura, a renowned manufacturer of motorcycle parts, delivers a top-quality product designed for the specific requirements of its application. ### Advanced Materials and Technologies Namura utilizes carefully selected materials and advanced technologies to ensure the reliability and durability of its piston rings. The type of cylinder sleeve, its coating, engine displacement, and stroke type (2 or 4) – all these factors influence the selection of the optimal ring composition. ### Compression Rings Made of highly ductile cast iron or stainless steel alloy, the compression rings offer excellent wear resistance and provide a tight seal for the combustion chamber. Chrome, phosphate, and nitride coatings further enhance their durability and corrosion resistance. ### Oil Rings The oil rings consist of three separate components: two scraper rails made of highly ductile cast iron or stainless steel, coated with chrome, nitride, or phosphate, and a single expander ring made of stainless steel. Their function is to precisely control oil distribution, minimizing oil consumption and preventing it from entering the combustion chamber. By choosing Namura NX-10200-2R piston rings, you are investing in the quality and longevity of your engine.