Hi Lee and thanks others for your repliesWhat we are trying to create is a couple of things in one for the enthusiasts of this particular Australian made brand.Firstly a decoder of the number stamped on the framesSecondly an historical archive of the frames themselves including some other aspects such as paint finishes and the likeHere's the breakdown as we established it, in a little greater detailFor the frame stamped 501161D as an example5= May some serials began with 10, 11, or 12 for October, November or December. However, the real test would be with real data.Are you trying to breakout this data on bikes you own, bikes you want to purchase, or are you doing this for all of the bikes manufactured by these two?Do you have a complete list of those you want to parse out?If so, why not post it as an attachment to a Reply, so that I can get a better feel for the complete picture?HTHLee Edited Septemby Guest. (Go online to for a list of serial numbers between 19.) Those bikes produced between 19 typically start with a letter representing the month it was produced (A=January, B=February, and so on) followed by a digit representing the year (9=1959, 0=1960, 1=1961, 2=1962, 3=1963, 4=1964).Read the serial numbers of bikes produced between 19. Those Schwinn bikes produced before 1959 have no real system to numbering but the serials typically contain six or seven numbers or letters.
Those produced after these dates will usually have a serial number stamped on the bottom bracket shell (the rear axle hanger holding the wheel in place).Identify Schwinns produced before 1948 by looking for either of these serial numbers: B12818 or Z12993.Interpret the serial numbers of bikes produced between 19. It will not identify the model of the bike, only the year the frame itself was manufactured.Look for the serial number on the lower head tube (right above the wheel on the front of the bike) for Schwinns produced between 19. The serial number on a Schwinn frame will tell you the date that frame was manufactured. Here are some example numbers: 0465228 - F106791 - EB37868 What a serial number can tell you Schwinn serial numbers commonly have one of three formats: In other words, it will not be found on a bike component (like a handlebar or a pedal).
Note: The serial number will always be found on the actual frame of the bike. The serial number can typically be found in one of three places on a Schwinn made bicycle. All serial number records before 1948 were lost in a factory fire. Notes: This tool works for Schwinn bikes from 1948 to 1982. This tool searches a database of Schwinn serial numbers and if it finds a match to your serial number then it will display the information available for your bike.
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