The component with the lowest price in the FRONT WHEEL (MODEL K2/K3/K4) schematic is the Weight,bal. 10.
Some items from this specific schematic: Tire,front 150/80-16.7, Weight,bal. 10, Spacer,fr Axle,r, Spacer,fr Axle,r.
With ten applications this Bolt(8x33) is the most specified part.