
VERTEX Complete Top-End Kit - Replica Forged Piston (Manufacturer part number: VTKTC24448C): a ready-to-install set for the top-end restoration on motocross machines. This kit includes the essential parts to replace the piston and associated components, featuring a forged aluminum piston of the Replica type suitable for oversized bores.
Important: top-end kits do not include ignition or clutch cover gaskets — remember to order them if you are changing the timing chain.
Designed for the motocross world, this kit is aimed at riders and workshops looking for a complete and clean replacement of the top-end. Compatibility examples (to be verified according to year and version): FANTIC XXF 450 (2026), YAMAHA WR 450 F (2023), FANTIC XEF 450 (2025).