Originally Posted by T-Mar

I believe we discussed all these bikes previously, with the exception of the Sport. It is indeed a good match for BlankCrow's and appears to be almost exactly one calendar year more modern, if we assume the C & D are the year indicators. The interersting thing is that he has two components dated to January 1987, yet the only years that I can find that used the "series" bar decals on the downtube logos were 1989 and 1990. Even if one of his was produced in late 1988 for a 1989 model year, the early 1987 components are a bit of a stretch. However, pending further info, my best guess is that Blank Crow has a 1989 model and you have a 1990 model.