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Vertex Top-End Piston Kit Yamaha YZ250 ‘2002-2021 – A

Vertex Top-End Piston Kit Yamaha YZ250 ‘2002-2021 – A

 159.95

Description

Vertex Top-End 2-Stroke Piston Kit Yamaha
YZ125 YZ250
Easing the repair process by saving time and money Vertex Pistons Top-End Piston Kits come with everything needed to replace your piston, top-end gaskets, and wrist pin bearing when the time comes.
All Vertex 2-stroke pistons are gravity cast from an aluminum alloy with 18% silicon content. Because of a cast piston’s ability to contain higher silicon content compared to forged pistons, and because two-strokes have lower cylinder pressures when compared to four-strokes, cast pistons are ideal for two-stroke engines.

All pistons are heat-treated with a T-5 hardening and tempering cycle
Piston skirts are 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, which produces an extremely light but very strong piston
Silicone decreases thermal expansion, therefore can be run at tighter tolerances compared with forged pistons
The high silicone content prolongs piston life by decreasing wear on the piston skirt, also making them less susceptible to rattling or breaking
Replica pistons and all rings are OEM replacements

Kit includes:

Piston with chosen bore, A = OEM
Piston ring(s)
Wrist pin with bearing
Circlips
Gaskets (head, base, intake and exhaust seals)

Note: Image is for reference only, actual product may vary slightly based on fitment.
Kit Piston et Joints Haut Moteur Top End Kolben-Kit piston set met dichtingen

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