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VERTEX Piston Kit Cast Replica for 2 Stroke (39.47 mm) Upgrade your 50 cc 2-stroke with the VERTEX piston kit—an OE-style cast replica designed for reliable performance and a precise fit. Compatible with select Gas Gas , Husqvarna , and KTM applications, this kit replaces worn components with a piston engineered for durable off-road riding. Key Features Heat-treated piston with a T-5 hardening and tempering cycle Molybdenum Disulphite skirt coating for faster break-in and increased piston life Gravity-cast aluminum alloy (not forged) with 18% silicone content Cast OE replacement for factory-like feel and compatibility Complete kit included: piston, rings, wrist pin, and circlips Specifications Engine Type: 2-Stroke Riding Style: Off-Road Displacement: 50 cc Piston Diameter: 39.47 mm Cylinder Diameter: 39.50 mm Compression Ratio: Standard Piston Material: Aluminum Alloy (Cast) Skirt Coating: Molybdenum Disulphite Model: Cast Replica Units: Kit
Piston is heat treated with a T-5 hardening and tempering cycle
Piston skirt is coated with a high-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
Gravity-cast aluminum alloy (not forged) with 18% silicone content
Cast OE replacement piston
Kit includes piston, rings, wrist pin and circlips