
VERTEX Complete Top-End Kit - Replica Forged Piston (Manufacturer part number: VTKTC24516A): a ready-to-install kit designed for 4-stroke engines, intended for the replacement of the piston and wear parts during a top-end rebuild. Ideal for motocross machines where restoration and reliability are sought.
Main features: Replica type forged piston with standard compression, diameter Ø 78.96 mm (oversize letter A). Complete set of rings included. Designed for 4-stroke motorcycles; the needle bearing is only provided for 2-stroke applications.
This kit brings together the essential components for an oversize A bore: piston, rings, and fasteners (pin + circlips) for a quick and clean top-end replacement. When mounted on a prepared cylinder head and respecting the manufacturer's clearance, it allows for a setup that conforms to original specifications.
Common compatibilities: suitable for HONDA CRF 250 RX ENDURO (2020-2021) and CRF 250 R (2021) — please verify the exact application before ordering.