Trek customer service responding very quickly this morning tells me that the frame is a 56 cm.
Trek bike serial number search.
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So turn your bike around and look for the spot where the two pedal cranks join.
You need to match up the make model to a particular year.
Your bike s serial number will most likely be found underneath the bike s bottom bracket.
Try either bikepedia or bicycle blue book.
What might happen however is that there s no serial number there.
If you search for 1234 you will only find bikes with serial numbers of 1234 and serials close to that not a bike with serial number of 12345689.
I show you the steps i use to find the model year of trek bikes.
The answers so far assume you know the model yr which is what i am trying to determine.
The vintage trek website uses sn but ends with 1997 and i think my trek is 21st century.
A serial usually won t tell you squat.
It takes a little bit of research on your part but i show you where to go and what to look.
Of course the serial numbers may not be coded but only sequential and so a lookup would be involved rather than a decode.
In the case of some early 80s treks the number is under the plastic cable guide on the bottom of the shell.
Trek does not sell trade or rent your personal data to third parties.
Just remove the plastic cable guide to see the number.
I know the serial number and numbers stamped at the bottom of the frame but i don t know how to find the exact model year.
It provides a record of your serial number in case your bike is ever lost or stolen and will help us get in touch with you with important product information.
This information may be used for marketing purposes by trek bicycle its subsidiaries its affiliate trek travel llc and your local dealers.