VERTEX Complete Top-End Kit - Forged Replica Piston (Manufacturer Ref: VTKTC24456B): a set designed for the quick and reliable restoration of the top-end of motocross machines. Built around a forged aluminum Replica piston, this kit features the bore dimensions and standardized oversize for precise installation.

Essential technical points:

• Bore diameter: 78.00 mm
• Piston diameter: Ø 77.960 mm (Ø 77.96 mm)
• Oversize letter: B
• Piston compression: Standard
• Material: aluminum (forged piston)

The kit simplifies the top-end revision by providing everything necessary to replace the piston and peripherals without the hassle of sourcing spare parts. Depending on the application (2T or 4T), the contents may vary: the needle cage and the crankshaft bearing are supplied for 2-strokes, while the 4-stroke kits include the timing chain.

Kit contents:

• Piston
• Rings
• Piston pin
• Circlips
• Top-end gaskets
• Needle cage (for 2T applications) / timing chain (for 4T)

Practical note: top-end kits do not include ignition or clutch cover gaskets — remember to order them if you are replacing the timing chain. Compatible notably with KAWASAKI KX 250 (KX252B) 2020 250 cm³.