Improved parts became available during the year or specified parts became unavailable. (BTW - This is tedious.) Cranks and brakes (and often seatposts), are more likely to be original than other components.(Note: Trek occasionally changed the components from what were described in the brochures. If your bike has a model name or model number, look it up on the Models/Year/Colors table to find the years your bike was sold.Ĭompare the components on the bike with those described in the brochures, if you think they may be original. This means that color and graphics can (rarely) be misleading as to year. Trek would use the then current colors and graphics, not the original ones. Occasionally, a frame was returned to Trek for repainting. If your frame has been repainted, you may be able to find the original paint inside the bottom bracket shell, seat tube, or head tube. The other is listed on the model description page or in the separate specifications table. For many models, two colors were available, but only one color is pictured. For some years, (generally 1981 and newer) color is telling. Go to the brochures, the web site (for 1993 and newer), the web site archives (for 2003 and newer) and perhaps the gallery for more detail. Other SN formats are described on the serial number page.Ĭheck the description of graphics by year in the timeline to match up your bike.

If it is 6 digit numeric higher than 270975, the year may be able to be determined from the Table II on the serial number page.

If it is 6 digit numeric, in the range 000000 to 270975, go to the serial number page to get the year and model number. If a 7 digit alphanumeric, see the results of the Serial Number Decoding Project. The earlier bikes models were available in numerous colors.Ĭheck the serial number of the frame. This works only for Treks from about 1982 onward. If you know the model number, compare the colors of your bike against the Models/Years/Color listing. One often has to be a bit of a detective to sort this out. Determining the Year and Model of Your Steel Trek

Trek bike serial number lookup