Athena 09-20 Yamaha YFZ 450 R HC 94.94mm 4T Forged Racing Piston

This is the Athena 4-stroke forged racing piston for your 2009-2020 Yamaha YFZ 450 R. Athena has been making motorcycle parts for over 40 years, and this piston is built to give you the reliability of an original equipment piston but with added resistance and better performance for off-road riding. It's made using a reverse extrusion process and then precisely machined with CNC tools to ensure very tight tolerances, less than 0.01 mm. This means it's going to fit and work smoothly in your engine.

The special alloy used for this piston includes nickel, silica, and aluminum. This combination helps it stand up better to the demands of racing and hard riding. The piston's surface is also made very smooth, which helps with regular airflow inside the cylinder and ensures proper flame propagation for efficient combustion. It's a well-built component designed to handle the stress of off-road performance.