Foil Drive Three Blade Propeller Hub and Rotor BundleLooking for just a little more torque to get out of the water easier? Designed to increase low end thrust, the Three Blade Propeller Hub is an optional upgrade for Foil Drive Assist PLUS units, a game changer for riders pushing the limits of rider weight, board size and foil size. Why purchase the bundle? Having two rotors and propeller set ups means you can quickly interchange your set up from two to three propellers, ideal if you have multiple