Originally Posted by vpiuva
I think they changed to 1200 model # to 1220 in the early 90's, so older than that. Visit
http://www.vintage-trek.com for help. Look in the brochure section.
I think the 1200 had a double crank and the 1220 had a triple. Also, the vintage Trek web site is pretty much limited to the steel frame bikes. The 1200/1220's were Al and aren't given much coverage.