Originally Posted by
balindamood
I did an initital look at Kuwaharas, and have not found anything similar, though there is not alot of info on them. The hubs are the standard non-sealed version. I think you are correct about the dropouts. I have scraped the paint off of them and do not see the standard Suntour markings. The rear (single) eyelets are also a bit different than what I am used to seeing on Suntours and Shimanos.
I have an early 80s Tange catalog. There are about 3-4 different forged DO options in the catalog, and yours matches one of them. The rears should be unmarked, and the fronts should be marked "Tange XX", xx being a two-letter code. It's cast in the DO along where the skewer binds.
The reason I suspect my Shoguns were made by Kuwahara is that I once saw a Nishika tourer whose frame was a dead ringer for one of my Shoguns-- in just about every possible way, and it had a "made by Kuwahara" sticker on it.