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Upper engine

Piston kit Vertex Forged - Oversize Cylinder

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Vertex Forged - Oversize Cylinder Piston kitRef : VER00292A / 1123349002

Recommended retail price:241,90 €?

229,80 ^€

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Description
Compatible motorbikes
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DescriptionVertex Forged - Oversize Cylinder Piston kit

Product details :

Features

VERTEX Forged Piston Kit Oversize Cylinder – Manufacturer Ref. 24405B

Designed for enduro and motocross, this VERTEX forged piston kit is intended for setups equipped with an oversize cylinder. Machined from high-quality forged aluminum, it provides the mechanical strength essential for off-road demands while maintaining the specified bore dimensions.

Bore Diameter (mm): 80.00
Piston Diameter: Ø 79.960 mm (Ø 79.96)
Oversize Letter: B (oversize reference for installation on oversize cylinder)
Compression: Standard
Material: Forged Aluminum

Easy to install on compatible cylinder kits, this piston is aimed at mechanics looking for a reliable assembly part to rebuild a 250 cm3 engine with an 80 mm bore. It is particularly recommended for the listed motocross machines: YAMAHA YZ 250 F (2026), FANTIC XXF 250 (2026), and YAMAHA WR 250 F (2026).

Always check the condition of the cylinder, rings, and mounting surfaces before installation. Keeping the dimension and oversize letter (B) will ensure precise installation for optimal performance on the track or trail.

Technical information :

Reference

VER00292A / 1123349002

Oversize

+0,01

Rings Quantity

Set

Compression Ratio

13,8:1

Diameter Ø (mm)

79,96

Bore size (mm)