The Vertex "Top End Piston Kit" includes everything you need for your piston change. Consisting of pistons and all necessary seals, the kits for the 4-stroke models also include a timing chain. 

Details:

• Replica - cast pistons in original OEM shape, heat treated with T-5 hardening and heat treatment cycle.
• Piston skirts with high-tech molybdenum disulphite coating for faster break-in and longer life 
• Cast piston sets are gravity cast (not forged) aluminum alloys with 18% silicon content, providing an extremely lightweight but very strong piston
• Includes top end seal kit, retaining rings

Note: The illustration is exemplary and may vary depending on model and selection.