VERTEX PISTON-REPLICA convient pour Yamaha 2T YZ/WR 250 99-12

Because of a cast piston’s ability to contain higher silicon content compared to forged
pistons, and because twostrokes have lower cylinder pressures when compared to
four-strokes, cast pistons are ideal for two-stroke engines. Vertex pistons are gravity
cast from an aluminum alloy with 18% silicon content. Silicon is important because:

- It decreases thermal expansion, which changes the geometry after the piston reaches
  operating temperature. With low thermal expansion characteristics, Vertex pistons can
  be run at tighter tolerances compared with forged pistons. This creates better power
  and performance, also making them less susceptible to rattling or breaking.

-  Silicon gives the pistons better wear characteristics and prolongs piston life
   by decreasing wear on the piston skirt.

Vertex Piston delivery with:  Kits include piston, rings, wrist pin and circlips.

Select your dimension!

A=66.34
B=66.35
C=66.36
D=66.37

reference picture!