Some items from this specific schematic: Bearing, Rim,fr Wheel Wm(2.15x19), Spacer,fr Axle,r, Balancer,wheel (30g).
The component with the lowest price in the FRONT WHEEL schematic is the Protector,whl Inr Tube.
The sub assemblies and components that make up this Front Wheel include this Rim,fr Wheel Wm(2.15x19), the most expensive part.