VertexWinderosa Piston Kit Fits KTM - 85 cc

We wanted a lightweight cast piston that would outlast the OEM and aftermarket forget pistons. The fact that we cast our content to an unprecedented 18-21% which gives our Vertex pistons a fantastic life span compared to other pistons on the market.
Pro Circuit has been testing and using these piston kits with great results. So if price, look no further... Vertex, the choice of champions!

• Cast aluminium alloy (not forged) with a 18-21% silicone content gives you a light but strong piston with great wear resistance.
• Piston skirts are Bisulphide coated for faster break-in time and increased piston life.
• All pistons are heat treated with a T-5 hardening and tempering cycle.
• Chromate steel ring are the finest available for racing.
• With proper break-in, Vertex pistons will not experience the problems commonly associated with forged pistons.

All Vertex piston kits include piston, rings, circlips and piston pin.

Exact fit A, B, C or D pistons match your cylinder bore perfectly to maximize power and performance while reducing blow-by and oil consumption