The piston is heat-treated with a T-5 hardening and tempering cycle. The piston skirt is 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. Unique cast GP-style race piston with only one compression ring. Piston kit includes piston, ring, wrist pin and circlips.
