Vertex Casted Piston kit

VERTEX Cast Piston - Ref. 24617B

Designed for the motocross world, this VERTEX cast piston is aimed at demanding riders looking for a robust and precisely machined bore part for their 300 cm3 single-cylinder engine. Made from high-quality aluminum, it embodies the recognized expertise of Vertex in off-road and MX competition, without any unverified technical promises: simply a design that adheres to manufacturer tolerances.

• Type: cast piston
• Compression: standard
• Bore Diameter: 72.00 mm
• Piston Diameter: Ø 71.94 mm
• Oversize Letter: B (oversize)
• Material: aluminum

This B piston offers the necessary oversize for cylinders re-bored to size B. Ideal for engine refurbishment work after wear or repair, it allows for the restoration of the appropriate assembly clearances for the cylinder. Compatible with the models listed by the manufacturer, including several TM RACING 300 (2025 model year), it is suitable for motocross and off-road configurations where precision fitting is crucial.

For safe installation, follow the break-in instructions and check the rings, pins, and clips before assembly. This part is intended for engine replacement — verify references and dimensions before ordering.