The component with the lowest price in the F-28 STRIPE (XL600RD-LD-RE) schematic is the Emb.,side Cover.
On this parts fiche the Emb.,side Cover is the most specified component.
The Xl600r 1984 (e) F-28 Stripe (xl600rd-ld-re) consists of six pieces with the Mark,l.si*type-1* being the most expensive.
