Vertex Complete Top End Kit - Casted Piston Cylinder kitRef : VER00397A / 1117195001

VERTEX Complete Top-End Kit - Cast Piston (Ref. VTK24570A)

This VERTEX top-end kit includes the essential components for a thorough restoration of the piston/cylinder assembly on motocross machines. Designed to facilitate repairs and minimize trips to the workshop, it contains the necessary parts to replace the piston, rings, and organize the reassembly of the top end in a single operation.

• Cast piston in aluminum (oversize A)
• Rings
• Piston pin
• Circlips
• Top-end gaskets
• Needle bearing (for 2T applications)
• 4T versions include a timing chain

Key specifications: bore diameter 54.00 mm with piston diameter Ø 53.940 mm (Ø 53.94 mm), piston compression: Standard. These values allow you to quickly identify the correct size for your cylinder and manage assembly tolerance during reassembly.

Common compatibilities (examples): YAMAHA YZ 125 (2026), FANTIC XX 125 (2026), FANTIC XE 125 (2025). Check the reference and bore size before ordering to ensure compatibility with your model.

Prioritize a clean installation, check the clearances, and ensure proper lubrication during reassembly to ensure a long lifespan for the top end.