Vertex Top-End 2-Stroke Piston Kit Yamaha

159,95 €149,95 €

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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.

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