Kits are cast aluminum alloy (not forged) with an 18-20% silicone content, which produces a light but strong piston. 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
Standard pistons and components are O.E.M. replacements
Most Vertex pistons are made for standard size cylinder only,
B, C, kit sizes are 0.01mm variations in the piston size to increase or decrease the clearance within the cylinder on standard ktm 300 exc 72.00mm bore size
Kits include piston, ring, piston pin (wrist pin) and circlips
Replacement rings are sold individually,
please call 01487813755
