World Voyagers were the first imported bikes sold by Schwinn. They didn't except for one small spot have the Schwinn name on them. Made in Japan by Panasonic. Tange headsets and basically full Dura Ace bikes. Yes I know the rear derailleur says Crane GS but that evolved into the first Dura Ace. Schwinn tagged GB bars and stem. I suspect JIS in sizing. In addition to the Voyager they also imported a World Traveler. The first two pictures are Voyagers and the third picture the one in the front is a Traveler. Roger