Specialized Bike Serial Number Lookup

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Serial

Specialized Bike Serial Number

    serial number
  • A serial number is a unique number assigned for identification which varies from its successor or predecessor by a fixed discrete integer value.
  • the unique code that identifies your bicycle, also referred to as a frame number.
  • A number showing the position of an item in a series, esp. one printed on paper currency or on a manufactured article for the purposes of identification
  • (SERIAL NUMBERING) The numbering of a printed product in sequential order. Usually for tracking and accountability.
    specialized
  • Highly skilled in a specific field
  • developed or designed for a special activity or function; 'a specialized tool'
  • Requiring or involving detailed and specific knowledge or training
  • Windows Embedded (POSReady) · Windows Preinstallation Environment · Windows Fundamentals for Legacy PCs
    bike
  • bicycle: a wheeled vehicle that has two wheels and is moved by foot pedals
  • motorcycle: a motor vehicle with two wheels and a strong frame
1981 Specialized Sequoia Bottom Bracket
In later models the size of the frame was on one side and a serial number on the other. This was all together. This frame is 47cm. I believe the earlier Konno bikes only had the frame size, the bikes that followed these were made by Miyata & have a M at the beginning of the serial #.
Bottom bracket shell
'1' probably means 1981, and '50' is the serial number? Edit: '50' is the frame size, the '1' I don't know. Apparently the frame is a 1982 model, not a 1981.
  • Years Selected Year: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007.
  • The welder is filter (frameNo;'ABCDEFGHIJKLMNOPQRSTUVWXYZ') The Serial number would be. Left (middle (frameNo;3;99); length (middle (frameNo;3;99)-1) The above uses a length of 99 to force it to select everything to the end of the frameNo from the 3rd character onwards.

Some models of bicycles have the serial number located on the left dropout. On older model bicycles you can find the serial number stamped into the actual bottom bracket shell. If you're not sure what your bottom bracket is, the easiest way to find it is to turn your bicycle upside-down and the bottom bracket is the part of the frame that your crank runs through. A serial number on the underside of a bottom bracket. Another serial number beneath the bottom bracket, aligned parallel to the frame. Rad Power bikes have their serial number on the head tube. This is on the front of the bike. Some Schwinn bicycles also have the unique identifying number (their serial number) on the head tube. A serial number located on a rear dropout. Some BMX bikes and a few Schwinn bicycles place the serial on the rear dropout.

Here is an email I got from an actual employee of GT: Cashculator. Thorium builder.

If the bike frame was manufactured at the Santa Ana CA facility, the first three or four digits of the serial number should be letters abbreviating the model or size of the frame such as 'XL', 'XXL', CR24, or something like that.

Identify Bicycle By Serial Number

The next part of the serial number is eight numeric digits. The first four numbers should be a two digit month followed by a two digit year.

The last four digits are the serialization digits 0000 to 9999 depending on what number the frame was of the years production.

Specialized Bike Serial Number Lookup Year List

Specialized Bike Serial Number Lookup

Specialized Bike Serial Number

    serial number
  • A serial number is a unique number assigned for identification which varies from its successor or predecessor by a fixed discrete integer value.
  • the unique code that identifies your bicycle, also referred to as a frame number.
  • A number showing the position of an item in a series, esp. one printed on paper currency or on a manufactured article for the purposes of identification
  • (SERIAL NUMBERING) The numbering of a printed product in sequential order. Usually for tracking and accountability.
    specialized
  • Highly skilled in a specific field
  • developed or designed for a special activity or function; 'a specialized tool'
  • Requiring or involving detailed and specific knowledge or training
  • Windows Embedded (POSReady) · Windows Preinstallation Environment · Windows Fundamentals for Legacy PCs
    bike
  • bicycle: a wheeled vehicle that has two wheels and is moved by foot pedals
  • motorcycle: a motor vehicle with two wheels and a strong frame
1981 Specialized Sequoia Bottom Bracket
In later models the size of the frame was on one side and a serial number on the other. This was all together. This frame is 47cm. I believe the earlier Konno bikes only had the frame size, the bikes that followed these were made by Miyata & have a M at the beginning of the serial #.
Bottom bracket shell
'1' probably means 1981, and '50' is the serial number? Edit: '50' is the frame size, the '1' I don't know. Apparently the frame is a 1982 model, not a 1981.
  • Years Selected Year: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007.
  • The welder is filter (frameNo;'ABCDEFGHIJKLMNOPQRSTUVWXYZ') The Serial number would be. Left (middle (frameNo;3;99); length (middle (frameNo;3;99)-1) The above uses a length of 99 to force it to select everything to the end of the frameNo from the 3rd character onwards.

Some models of bicycles have the serial number located on the left dropout. On older model bicycles you can find the serial number stamped into the actual bottom bracket shell. If you're not sure what your bottom bracket is, the easiest way to find it is to turn your bicycle upside-down and the bottom bracket is the part of the frame that your crank runs through. A serial number on the underside of a bottom bracket. Another serial number beneath the bottom bracket, aligned parallel to the frame. Rad Power bikes have their serial number on the head tube. This is on the front of the bike. Some Schwinn bicycles also have the unique identifying number (their serial number) on the head tube. A serial number located on a rear dropout. Some BMX bikes and a few Schwinn bicycles place the serial on the rear dropout.

Here is an email I got from an actual employee of GT: Cashculator. Thorium builder.

If the bike frame was manufactured at the Santa Ana CA facility, the first three or four digits of the serial number should be letters abbreviating the model or size of the frame such as 'XL', 'XXL', CR24, or something like that.

Identify Bicycle By Serial Number

The next part of the serial number is eight numeric digits. The first four numbers should be a two digit month followed by a two digit year.

The last four digits are the serialization digits 0000 to 9999 depending on what number the frame was of the years production.

Specialized Bike Serial Number Lookup Year List

If the frame was made overseas in Taiwan, it gets more complicated. If the number starts with a K, the frame was made by Kinesis. Contour.

That's the only one I remember off the top of my head.

There were at least four companies in Taiwan that made the GT lines :

Robinson, Dyno, Powerlite and Auburn included)

The first digit would be a letter designating the factory that made the frame. There might also be a second letter digit specifying the factory that assembled the bike, if applicable. The model and year of production was also coded by a letter, so you won't be able to spot a two digit month and two digit year.
Before I left, I was writing a specification to standardize all of the serial numbers because GT was starting to send most of its US production to other US fabrication shops.
The information might also come in handy for deciphering other makes because the factories in Taiwan make bikes for a lot of different companies.
I am tinkering around with the idea of starting to make my own frames, kind of on a 'one-off' basis. I am also teaching welding at a local community college.
By the way, did I tell you that the guy ran GT's in house fabrication for the last ten years (he recently retired) was none other than Gilbert Axt. Who? Do you remember Race, Inc.? That was Gilbert.
He also did the original PK Ripper for SE Racing. History, man.
It might be a really cool thing if I can track down Gilbert now and interview him for you.
THAT is the kind of stuff that belongs in the BMX Museum!

Later. I'll write you when I get a chance. Dan Garcia

and here is the updates, thanks to love thegoose! (Michael S)
well we get a good bit of gt serials that could be identified by the owner, if they only had the tips that some of us have learned, so i will post what i know, and anyone with more knowledge can add to it.so here we go.
here is an example to go by. on the dropout you have 'M1' followed by '08922198'.this one is simple.
M1 stands for 'mach one' that is your model gt.
it can also be a 'I' for interceptor and so on.
next on the serial is '0892' this is easy to decode too,
08 means 8th month, which would be august.
then you have '92' next in the lineup, this would be 1992
the last 4 digits, are your build number, this one would be the 2,198th one built.
Here is another example. if your serial is KGCG2297 this one gets a little complicated. but still easy once you learn the code to it.
the first letter is who made the frame itself, in this case it would be 'Kenisis', an overseas company.this could be replaced by another letter but at least we know what that one is there for.
next is the letter 'G'.this isnt always there, but if so, this is where it was assembled, (ever notice the built in usa sticker on your gt or dyno?) this is what that letter is there for. it wasnt made here, but was built here.
next is the letter 'C'.C is the 3rd letter in the alphabet, and march is the 3rd month, so march is the build month.
next is the letter 'G' this is the year. G is the 7th letter in the alphabet,
so this would be a 1987.
here is one more.your serial resembles this:f6030578.
to start, if you have a 'baseball' looking stamp behind your serial, this frame was made overseas..no its not a pacific, so dont cry, or get mad..and lets continue.
on this serial, the first number is the last digit of the year, so 6 stands for 1986
next is '03'..this is the third month.which is march.
so you have a gt built in march of 1986.
but still use the museum as a guide to id the frame, cause sometimes you can find the year, but getting a posotive id on the model isnt possible without knowing which style frame you have.
this doesnt apply to new gt's, but hopefully some people with info on those will chime in. this isnt always going to match your serial, you may have a 'fake'.its not likely but it happens. also on earlier models this can differ. this is for the 2 most popular style serial's i see on here. also, common sense tells you that if you have a suspected 'gt' frame, look it up and compare it in the musuem, knowing which style frame you have will help with the process of id'ing your bike with the serial, especially if the serial has some damage that prevents you from getting the full number.
hopefully this bit of info can be used for everyone, and this will save you from those late nights sitting around waiting for a response to your post looking for an answer to the idendity to your gt..although i do feel smart and proud when i can answer these posts. well, thats it for me, if anyone else has info on serials or if you see a mistake in this guide, tell me so i can edit it. happy holidays people.





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