Recently bought a early 80s Specialized Allez frame. Pretty sure its 3Rensho-built. Has the lugs, off-set fork crown, Specialized S on the seatstay. I'll plan to add some pictures this evening when I get home.
Main question: Anyone know the seatpost size on these? I tried a couple seatposts I have around. 27.2 was too big. 26.6 seemed a tad small. Guess that limits it to 26.8 or 27.0.
The bike is sleek and light for steel - 1985g with seatpost bolt in a size 56. Can't wait to build it up.