Some items from this specific schematic: Ybs67-8 Washer, Spring, Bolt, Flange (2h7), Stay, Engine 3, Bolt (663).
The most reasonably priced component used on the Ytm200l Tri-moto 1984 Frame is the Ybs67-8 Washer, Spring.
The sub assemblies and components that make up this Frame include this Frame Comp, the most expensive part.
