VertexWinderosa Forged Big Bore Piston Kit Fits Honda - 400 cc

Forged Big Bore Piston

• All piston skirts are coated with a high-tech coating for faster break-in time and increased piston life.
• All pistons are heat treated with a T-5 hardening and tempering cycle.
• Kits include piston, rings, wrist pin and circlips.

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