These 2 nylon propellers are plenty to propel your CHAMPION to high racing speeds.
LiteHawk CHAMPION- Replacing the Two Bladed Propeller:
You will need an 7mm wrench to remove Ny-Loc Nut that holds the Propeller on to the Flex shaft. This Nylon Prop has solid position locks that match a brass fitting on the Flex Shaft. The Propeller will spin true with the same speed of the Motor shaft.