A sample from the products for the Swingarm / Air Cleaner / Muffler include: Element-air-clr, Coil,a.c.ign., *fop*stay Protr Ex P, Gasket,ex.pipe (nas).
Of all the components used in this assembly the Fork,rear is the most expensive.
The most reasonably priced component used on the Pa50i Hobbit 1978 Usa / 20mph Swingarm / Air Cleaner / Muffler is the Nut, Ex. Pipe Joi.