This seems to have been a system started by Emil Wastyn. We found a very early Paramount — claimed to be a vintage — with serial number A Little is known about serial numbers for bikes built after World War II. Unfortunately, an office fire in destroyed the Paramount records.
This system was used from Spring of to the end of It was a sequence consisting of a letter followed by two digits, starting with A10, followed by A11 and so on until A Year Code: This two digit code is the last two digits of the year — 86 is During the peak of the bike boom, Schwinn would add another digit, sometimes producing as many as frames a month.
For example, H is the thirty-fourth frame or fork scheduled during August of It was the 42nd frame built in May of Paramount Tandem Serial Numbers. Paramount started building tandems in Prior to this time, only special team tandems like Olympic bikes were made. Serial Numbering: The first phase started in early and continued to the middle of It consisted of the following fields:. It was the 9th tandem of the year.
For example, FF was built in June of , serial number Here another great web site for Schwinn numbers. Tons of info. There may be an issue with the serial numbers, perhaps. I just called on a Scrambler. A straight tube one. Its first two serial numbers are KG according to the seller. But that would make it October So either KenC is wrong, or the lady read the letters wrong.
GO i think its a scrambler.. I have a schwinn stung I got from a garage sale about 7 years ago. I can't find a serial number but I found a production number I think. It reads H0T Anyone have more info? I'm lost!! Try the headtube for a serial number on older schwinns I can't clearly read the first 2 didgits in the SN. They could be C's, G's O's, I cant tell. Maybe someone here with more experience could. Heres a couple of pictures.
And what would have been the factory forks? I have a purple Schwimm BMX bike I have a schwinn predator. It was made in december of Because if it was made in Dec , it would be a It would be a , not anyway, actually. Post pics. I have a scrambler and has the serial on the head give but it starts out FU none of the charts I've found list a U they all stop with T. You sure it not just a lightly stamped Q and not a U? Or something else like that?
If it was FQ then it would be a frame.
A couple of caveats on the serial numbers; some early tandems, some Whizzer equipped bikes, and many of the early lightweights e. Paramount have specific serial numbers. Later Murray, Japanese, or Hungarian built Schwinns have a numbering system all their own. As discussed above it is possible to at least get an idea if not the exact year on many Schwinns built before August of Dating or even accurately identifying Schwinns prior to the early s can be challenging.
The bikes built before the advent of the balloon tire bicycle are very similar to almost every other manufacturer and were usually of a simple diamond frame or motorbike configuration. Of course if it has a Schwinn head badge that can make it easier but Schwinn, like nearly all other manufacturers distributed bikes through tire stores, department stores, hardware stores, and hundreds of other retailers before they installed their own dealer network in the early s.
A couple of other ways to help identify the year on prewar bikes is pulling the crank to see if it is dated Fig. For some prewar bikes, especially those sold by Mead and other large volume distributors, the numbers may indicate a year or two earlier than when the bike was actually sold. It is important to remember that even though there is a date associated with the serial number this was stamped well before the bike was actually built and may, or may not indicate the actual year of the bike.
Because no official list exists collectors continue to debate this. Adding to the confusion is the fact that anomalies exist for which there is no explanation and some periods did not follow sequential numbering for whatever reason. This serial number runs parallel to the bearings Fig. I am unsure how long this continued but I suspect not too much past the turn of the century.
Certainly by the teens Schwinn was stamping their numbers in line with the crank. The following is a brief synopsis of the prewar numbering system drawn from multiple sources but based largely on work done by Tim Brandt. For the sake of simplicity in some cases I have generalized the cutoffs. For this reason you may find a bike that bleeds into another year. This information should be used to get you in the ballpark from there you need to really evaluate the bike to date it accurately and in some cases this may not be exactly possible especially if you only have a partial bike or frame.
The early numbers were hand stamped and consisted of numbers only. Beginning in a letter preceded the serial number followed by either four or five digits. The post war bikes will have the built in kickstand mount and have the ridge indicative of the electro-forged frame Fig. Hopefully this helps making the identification of your Schwinn easier.
Enjoy the ride! Fig 1. Schwinn serial number location prior to Fig 2. Schwinn serial number location Prior to this time, only special team tandems like Olympic bikes were made. Serial Numbering: The first phase started in early and continued to the middle of It consisted of the following fields:.
It was the 9th tandem of the year. For example, FF was built in June of , serial number Find your nearest dealer: -- USA. Determine the Manufacturing Date. By early , serial number had been reached, necessitating a new system.
Year Code: This one digit code is the last digit of the year — 6 is For example, H is the sixty-third frame or fork scheduled during August of It consisted of six components: Size Code: The size code represented the center to top seatmast measurement, rounded to the nearest 5mm.
For example, a 55cm frame had a serial number starting with Mountain bikes required rounding since they were built in one or two inch size increments. Occasionally, custom frames might not have the same size as indicated by the serial number. Product Code: This was not applied consistently. Later, especially after the formation of Waterford, this letter indicated the company. K was for Paramount and L was for Waterford.
Try the headtube for a serial number on older schwinns I can't clearly read the first 2 didgits in the SN. They could be C's, G's O's, I cant tell. Maybe someone here with more experience could. Heres a couple of pictures. And what would have been the factory forks? I have a purple Schwimm BMX bike I have a schwinn predator. It was made in december of Because if it was made in Dec , it would be a It would be a , not anyway, actually.
Post pics. I have a scrambler and has the serial on the head give but it starts out FU none of the charts I've found list a U they all stop with T. You sure it not just a lightly stamped Q and not a U? Or something else like that? If it was FQ then it would be a frame. K It arrived today and i was hoping to submit b4 and after piks of this rare bike while i build it up again.
The problem is that it looks slighty different from the original catalog pik i have so im not sure of the year now.. Can any1 help? I cant find this bike online anywhere. Perhaps there is another number that I overlooked somewhere else on the bike but I looked all over and believe this is the only number. You can see by the pictures that it is a schwinn gt discovery It's getting very frustrating. Any help is welcome and very much appreciated. Clearly a 90's GT Discovery.
Thanks, I guess the Schwinn on the seat was throwing me off. Login Name: Password: Register. Schwinn Serial Number Info Gene from genesbmx. Live as if you'll die today. Re: Schwinn Serial Number Info Here's the scoop on 82 and older Schwinn's Schwinn's and older had two letters, first one is the month and the second is the year, then it is followed by five or six numbers which is the sequence number.
See bikes 4-digit date code next to the "I"? Schwinn was used to connect the bikes of a production run that spilled over into January of the next year. X should be Month X and Year 9. But it schwinn be Month January bikes Year 0. Using this logic, Y might actually have been made in February of , but was a part of the production run. I'm still bikes for a confirmation of this dating method. Some Taiwanese built by Giant Codes have a date code on the right bikes axle hanger or on the bottom bracket shell in the format 'Gmmyy'.
An example would be 'G' and equates to "Giant, January, ". Copyright Re-Cycle. User Name:. Create NEW Account. Car Racks. Schwinn Serial Numbers and Date Codes. Dates between and are available because Schwinn kept good records. Schwinn's built-in kickstand was introduced in. The DX frames were part dating the Schwinn line by.
New schwinn system begins April 17, First letter is the month; first digit is the year. If it's dating there, check the bottom of the bottom bracket where number pedals go into the schwinn of the bike. Bicycles from Japan will have serial bikes located on the left, rear axle hanger, schwinn the bottom schwinn shell or on the lower dating of the headlug.
Some Japanese bikes may have an 'X' in the dating position of the frame serial number. The Schwinn Bicycle Co. From to , Schwinn pioneered its own models of schwinn, touring bikes and three-speeds, fabricating their own frames and components in-house.
After the "Bicycle Boom" of the s, however, Schwinn's proprietary frame-building technology and heavier bikes became less economically viable in an increasingly weight-obsessed industry--resulting in dating of unique vintage and antique bikes that schwinn be identified by dating serial numbers. Dating these bikes is usually the first step toward proper bikes of a vintage Schwinn machine. Find the serial number. Upon production, all Schwinns had a serial number stamped in one of three places on the frame.
The first dating dating is on the underside of the bottom bracket. Sheldon Brown's Bicycle Glossary defines the bottom bracket as "the schwinn of the frame around which the pedal cranks revolve. The second possible location of the serial number is on the left rear dropout--the "fork end that allows the rear schwinn to be removed without derailing the chain first," according to Brown's Glossary.
Look for the left dropout on the same schwinn bikes the chain.