Originally Posted by
spacemanz
OK, the only major components left on it were, the Cyclone derailleurs, which are BOTH marked XA (for January 1981), and that rear hub marked March 1981. There is a Sakae Road Custom drop bar, and a single Gran Compe lever, as well as a single matching GC caliper. I guess there "might" be a date code on that Kawamura headset, which I'll look into, but I'm just guessing there, no idea if they were dated at all. Overall, this is just the bare frame & fork, with a few parts included, but I'm OK with that.

BTW, the seat tube is smallish, I tried the 26.8 from the Bertin, and it looks a little big, but there's some cleanup needed in that area, before I really try.
Thxs, those are early enough in the year that it's almost certainly a 1981 model. 26.8mm is the theoretical inside diameter for most Tange butted crMo tubesets. I've seen them with both 26.6mm and 26.8mm posts. It all depends on much honing/reaming the manufacturers' perform.