## Namura NA-50008-2R Piston Rings 40.46mm - Reliability and High Performance Namura 40.46mm NA-50008-2R piston rings are a key element ensuring optimal engine performance for your motorcycle or scooter. Often overlooked, piston rings have a huge impact on efficiency, durability, and combustion effectiveness. Namura, a renowned manufacturer of motorcycle parts, offers piston rings designed for specific applications, guaranteeing a perfect fit and reliability. ### Advanced Materials and Technologies The materials used are one of the most important factors influencing the quality of piston rings. Namura utilizes high-quality ductile cast iron or stainless steel alloys, characterized by exceptional wear resistance and providing a tight seal. Additionally, depending on the model, the rings may be coated with chrome, phosphate, or nitride, further increasing their durability and resistance to high temperatures and pressures. ### Compression Rings Compression rings, made of ductile cast iron or stainless steel, create a tight seal in the combustion chamber, preventing gases from escaping into the crankcase and loss of power. Chrome, phosphate, or nitride coatings further enhance their wear resistance. ### Oil Control Rings Oil control rings consist of three components: two scraper rails made of ductile cast iron or stainless steel, coated with chrome, nitride, or phosphate, and a single expander ring made of stainless steel. Their task is to effectively scrape excess oil from the cylinder, preventing it from burning and ensuring optimal lubrication. ### Precision and Fit Namura 40.46mm NA-50008-2R piston rings are precisely manufactured, guaranteeing a perfect fit to the cylinder and piston. The type of cylinder sleeve, its coating, engine capacity, and piston stroke - all these factors are taken into account when designing Namura rings, which translates into their excellent performance and long service life. ### Why Namura? By choosing Namura piston rings, you invest in quality and reliability. The Namura brand is a guarantee of precision manufacturing, the use of advanced technologies, and the highest quality materials. Thanks to this, your engine will run efficiently and trouble-free for a long time.