Wiseco 446M04900 Kawasaki KX 80 79-83/ KDX 80-82 1929CD Piston KitWiseco 446M04900 Kawasaki KX 80 79 83 KDX 80 82 1929CD Piston Kit The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high performance 4 strokes. Today, Wisecos forged 4 stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4