Seller notes

Vertex 23910B Forged Piston Kit (860cc Big Bore) - 6.00mm Oversize to 90.96mm, 9:1 Compression Bore: 90.96mm Compression: 9:1 Compression Sizing: 6.00mm Oversize Exact fit A, B, or C pistons match your cylinder bore perfectly to maximize power and performance while reducing blow-by and oil consumption. 2-stroke pistons have an 18% silicon content which decreases wear and thermal expansion, allowing for tighter running tolerances for more power, less noise, and longer lifespan. High-tech Molybden...

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