A sample from the products for the Rear Wheel include: Nut,flange 12mm, Collar,rr.l Wheel, Hub Sub Assy,rr, Rim,wheel.
Of all the components used in this assembly the Wheel Sub Assy,rr is the most expensive.
The most reasonably priced component used on the Crf50f 2011 (a) Australia Rear Wheel is the Nut,hex 6mm.