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. We do not currently do partial serial searches.We do close serial matching - bikes with serial numbers that are close to the serial you entered are shown below the matching results under the heading 'Serial Numbers Close to.' - given a search of a serial number with a couple numbers/letters that are different or missing.Searching for either M4106I9CA1 or 200910427-2A will find the bike. Look for a letter and number in addition to the C above the five-digit serial. If theres a C above the serial number on your Mongoose, the bicycle was probably made in early 1976. When rebuilding and restoring old BMX bikes its extremely helpful to know exactly how your bike is. If you see multiple numbers on a bicycle - such as in the photo of the Look bike above - try searching for just one of the numbers at a time. Mongoose serial numbers were first and then GT serial numbers. see any formula or sequences in numbering in their seial numbers that ma. We split bike serials up by spaces and store each separately. Google bmx serial number chart and click on link to images and you will see.We treat all these numbers the same way - a search for 005LLL will match a bike with the serial OOS111.

Certain numbers and letters are difficult or impossible to distinguish between (e.g.Please feel free to add to, or correct this post.We've done a few things to make it more likely that you'll find the bike you're looking for. The first digit was a letter followed by a one digit number F2 meant June of '82 (using the same code as the bike models above) and these SN's were no longer found on the BB shell, but rather the lug behind it.Īfter 1980 it gets fuzzy for me since I lose interest in mongeese after 1980. This continued until sometime after March of '81 when the SN just went to one line, dropping the top line completely. Later the 'T' was moved to the top line, in front of the 'C' for both Team Mongoose and Supergoose: When the team mongoose model was introduced in '78, a 'T' was placed in a third row at the bottom, as shown in this pic (you can barely make it out, but it's there) The Racer-X models serial numbers started with an X (example: XB8, rather than CB8) In early '76 a 'C' was added to the top line The earliest models ('75) were comprised of five digit numbers only (see pic)

The next line was simply the sequentially numbered serial number. The third digit was the last number in the two digit year: The second digit was the letter code for whichever month the BB shell was manufactured: The first digit C stood for Chatsworth (California, where the factory started out) Typically, the Serial Number was on two lines, looking like this: (maker of Mongoose) used the same format for all of their bicycle brands (Jag, Roger DeCoster, Moto-Trac, etc.) with a few exceptions.

Mongoose bike serial number lookup