The complete piston kit D.40.25 is designed to optimize the performance of your 50cc engine. Made of cast iron, with a diameter of 40.25 millimeters, this piston is ideal for Minarelli AM engines. Each kit includes rings, pins, and piston clips, ensuring a complete and hassle-free replacement.
Particularly suitable for a sensitive break-in period, the piston features a molybdenum coating, which provides effective protection during the initial usage phases, reducing wear on the cylinder and the piston itself. After approximately 10,000 km, replacing the piston becomes essential to ensure lower consumption and an increase in engine power. It is important to note that this piston is not recommended for aluminum cylinders, as it may cause unwanted noises. Choosing the right piston is essential to keep your engine in perfect condition and optimize its performance.