This Athena replacement a piston kit is designed for the specific Yamaha applications listed below. 2-stroke cast piston for Athena big bore cylinder.

Key Features

• 2-stroke cast piston for Athena big bore cylinder.
• High resistance to mechanical thermal stresses.
• Made with cutting edge CNC machining tools that ensures dimensional tolerances of less than 0.01 mm.
• Has been tested on engine dynamometer benches under progressive stress load, and thereafter on track to validate it performance even in the most extreme conditions.
• The rings adapt to the cylinder liner even at low tangential load.
• Kit includes cast piston, wrist pin, circlips and piston rings.