The VERTEX 2-stroke piston kit is crafted through gravity casting from an aluminum alloy with an 18% silicon content. The silicon minimizes thermal expansion at operating temperatures, reducing noise and the risk of fractures. Additionally, silicon enhances wear resistance, extending the lifespan of the piston. This kit includes the piston, piston ring(s), piston pin, and circlips! VERTEX offers several 2-stroke piston versions: Replica (original form), Race (performance-enhancing), and Pro Race (special forged piston).