## Namura NA-10025-4 Complete Piston Kit 69.45mm - Reliability and Performance for Your Motorcycle The Namura NA-10025-4 piston kit, with a diameter of 69.45mm, is an excellent way to improve the performance and reliability of your motorcycle or ATV engine. At a fraction of the cost of replacing the entire cylinder, you receive a high-quality product that will ensure smooth and dynamic engine operation for a long time. ### Advanced Technologies for Maximum Performance The Namura NA-10025-4 is not just a replacement for the original piston. It's a precisely manufactured component utilizing advanced technologies, such as the MOS2 (Teflon/Molybdenum) coating on the piston skirt, which minimizes friction, improves heat transfer, and prevents cold seizures. The smooth, machined piston crown reflects combustion heat and reduces carbon buildup, resulting in increased horsepower and fuel economy of up to 6%. The anodized dome increases resistance to high temperatures and ensures long-lasting durability. ### Hypereutectic Aluminum Alloy - Durability and Wear Resistance The use of a hypereutectic casting process allows for a higher silicon content in the aluminum alloy, which significantly reduces the thermal expansion coefficient and increases wear resistance. The Namura NA-10025-4 piston is durable, reliable, and ready for extreme loads. ### 1.00mm Oversize - Perfect Fit The Namura NA-10025-4 piston kit has a 1.00mm oversize. This refers to the difference between the nominal piston diameter and the cylinder bore diameter. The precise fit guarantees optimal compression and maximum engine performance. ### Complete Kit Ready for Installation The kit includes an individually packaged piston, a set of OEM quality rings, a wrist pin, and circlips. All components are carefully selected and ready for installation by a qualified mechanic. ### Benefits of Choosing the Namura NA-10025-4 Piston: * Increased engine power and reliability * Extended engine life * Fuel savings * Lower operating costs * High quality workmanship and materials