I have a 1983 Trek "400 Series" bike I bought used in 1999. It is a lugged steel frame and fork and the tubing sticker says; Tange Mangaloy 2001 Double Butted Tubes. It is a metalflake silver grey color and the paint is original. It has a Trek headbadge and the word "Trek" is cast into the tops of the seatstays where they are brazed to the seat tube lug.

Mine had obviously been heavily modified by the original owner as it had 105 DP brakes, a replacement crank, Shimano 7-speed barcon shifters and a peculiar 6-speed Shimano cassette hub. There are no downtube shifter bosses and the cable stops are a band-on adapter that allows the barcons to be used. Therefore, I have no idea how it was factory equipped.

Does anyone have an '83 Trek catalog that would have the original specs? I'd appreciate knowing just how this bike was originally set up.