Necro-quote, I know, but BOOM, this was the data point drop I needed. Just picked up an '88 frameset (88C0182), including a tricolor crankset and rear mech. Maybe that makes it an '89 (or late '88?) Carbon-R, since it's not DA. Dude threw in a 105 FD, but it's otherwise gonna be a parts bin build. Even the vintage-centurion site thinks it takes a 25.4 seat post, but the two I have definitely will NOT work. I have a sense a 25.0 is gonna set me back a little.