Couldn't remember exactly when I bought the bike, but that vintage site says I probably have a 91... based on frame colors. Except, it says "91, black with white decals on yellow and silver" and there's almost no yellow, but a lot of blue for the drop shadows. 91 sounds just about correct and the years around it colors are way, way off.
The brochure says 48/38/28 for my front chainrings, but doesn't list anything for the rear cogs. Shouldn't one also have to know those specifics to be able to have a list of overall gearing? Or can one simply use the front 3...