The component with the lowest price in the FRONT WHEEL (GSF1250SAK7/SAK8/SAK9) schematic is the Bolt.
A sample from the products for the Front Wheel (gsf1250sak7/sak8/sak9) include: Seal,oil(32x52x7), Spacer,fr Hub Bearing, Bolt(8x21), Balancer,wheel(10g).
Of all the components used in this assembly the Wheel,fr(17m/cxmt3.50) is the most expensive.