Originally Posted by
unworthy1
All those GPM bits (DOs, stay bridges) and the slotted BB shell plus the BB threading certainly says "Italian" but if your seatpost size can be confirmed with a better tool than calipers (which unfortunately are not the best for such an internal tube that can become distorted) POSSIBLE this is an oddball that used METRIC tubing. Very rare for an Italian builder but not unknown and would explain if this is actually 26.4 or 26.6.The stay caps ring a faint bell and may be a distinctive clue, can you add some close-ups to your "album"?
Certainly! I couldn't put them in the same album but i put them in a new one imgur.com/a/JFcLl6O . I put a coat of paint already, sorry if it decreases the details on the image.
I experimented a bit with seatpost and beer can shims. I think its probably not 26.6, I could fit 26.4 there but it was a bit tight, 26.2 also worked, and 26.0 was a bit loose. I think im going with 26.2 just because its the more common of the two between, i think (26.4 and 26.2).
I'm not sure what to infer from that but im kind of pissed everyone decided to make seatposts in steps of 0.2mm, just enough to make things fit poorly, not enough to make any functional difference
