Vertex PRO Full forged Size A Piston kitRef : 9445DA / 1095167001

VERTEX Forged Piston Pro Version (Manufacturer reference: 22645A) — designed for motocross riders seeking a robust and precise engine part. This forged aluminum piston features a meticulous finish and is tailored for oversized cylinders, ensuring reliable installation during engine maintenance or a complete overhaul after intensive use.

• Type: Forged Piston Pro Version
• Compression: Standard
• Bore: 66.40 mm
• Piston Diameter: Ø 66.340 mm (oversize letter: A)
• Material: Aluminum
• Category: Motocross — suitable for off-road environments and demanding uses

This piston is aimed at thrill-seekers in motocross, demanding mechanics, and teams looking to maintain a healthy and durable engine base. Its manufacturing tolerance allows for precise contact with the oversized cylinder, facilitating installation and break-in. Compatible with several recent 250 cc models (e.g., YAMAHA YZ 250 2026, FANTIC XX 250 2026, YAMAHA YZ 250 CG23 2023), it integrates into engine rebuilding or preparation operations.

Choose this VERTEX part if you are looking for an OEM solution designed to withstand the demands of motocross without compromising on manufacturing quality.