Nice! Is yours currently built as pictured? Mine is also a 1984. Here’s a shot of the bike as purchased...





And as she sits presently...




Yet to ride a 520 myself, as mine had the bb installed backwards when I bought it. The small chainring was in full contact with the stay. But I have not read or heard one negative criticism for these bikes. I had an ‘84 510 that ride very well, so my expectations for this fram are pretty high.