Several years later may I interject that I have a 1976 "Yellow" Araya tlhat has the exact same forks and lugs used on the headset, seatpost, and bb except that they
are not chrome. You will also see them on some Criterium Rex bikes.
Possibly Araya for a time was making frames for Vista, Italvega, Univega as it emerged, and themselves for a period? My chrome lugs on my Italvega Super Record are more "Bianchi-ish".
http://www.flickr.com/photos/umpire5...7622283381989/
http://www.flickr.com/photos/umpire5...7622324703333/
I think it is the same seat post Bob...just at a different angle. Ill post another pic tomorrow. (too tired to walk to the garage tonight)