
VERTEX Complete Top-End Kit - Forged Replica Piston (manufacturer part number: VTKTC24270A): a top-end kit designed for motocross riders looking to refresh the top end of their 450.
This kit includes everything essential for replacing the piston and associated components during a service: forged aluminum piston (Replica), rings, piston pin, and circlips. For two-stroke applications, the needle bearing is included; four-stroke kits come with the timing chain. Note: top-end kits do not include ignition or clutch cover gaskets—be sure to order them if you are changing the timing chain.
This VERTEX kit is aimed at enduro and motocross riders looking for a robust replacement part for top-end restoration. Compatible with several 450 models, including YAMAHA WR/YZ 450 F (2018–2020 models depending on the specific variant). Installation and break-in according to manufacturer recommendations are advised.