ACME 579 4 Blade 13" x 12.125" Propeller Hero This design ensures you maintain

This design ensures you maintain momentum even when outside the power zone or during pumping

Perfect for boat and park versatility

Many boaters refer to them as "lead ballast bags" although they are not actually filled with lead as it can cause serious health concerns

The forks offer 1 1/8" spacing for all types of skis

ACME 579 4 Blade 13" x 12.125" Propeller Hero This design ensures you maintainThe ACME 579 4 Blade Propeller is nothing like 4 Blade propellers of the past. Prior to 1999, wakeboard and ski boat propellers were cast from molds, a process that offered little precision and had severe limitations for the size and shape of the blades. The result was inefficient props with small blade surface area and poor balance which caused vibration in the boat drive line. All this changed when ACME revolutionized the manufacturing process by