Of all the components used in this assembly the Stay,rear Winker is the most expensive.
Some items from this specific schematic: Bolt,hex 6x12, Washer,spring,6mm, Stay,rear Winker, Washer,plain, 6mm.
The most reasonably priced component used on the Cf50 Chaly Germany F 17 is the Washer,plain, 6mm.
