The Cushion is the most widely applied product in the GS750EC 1977 (B) USA (E03) SEAT (GS750B) ( three times ).
The Seat (gs750b) assembly is constructed from several parts from which the Seat Assembly is the most expensive.
The most reasonably priced component used on the Gs750ec 1977 (b) Usa (e03) Seat (gs750b) is the Pin.