Seller notes

Vertex Top End Piston Kit Size A 96.95mm 12.5:1 for Yamaha YZ450F/WR450F/YZ450FX Product Details All pistons are heat-treated with a T-5 hardening and tempering cycleAll piston skirts are coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston lifeHigh Compression pistons improve power and torque across entire rpm rangeKits include piston, rings, wrist pin, circlips and gaskets Fit GuideModelTop End Piston KitBore97mmCompression Ratio12.5:1Country of O...

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