Schwinn code dating
(See illustration below) In this method of bicycle frame construction, "mitering" or cutting the tube ends so that they fit together precisely is critical so that capillary action will draw the molten filler into gaps for a strong joint.The extra thickness of the fillet also provides strength, and its smooth contour distributes stresses evenly. The letter "G" followed by a two-digit month code (01 = January etc.) and two more digits for the production year (81 = 1981 etc.).An example would be 'G0181' and equates to "Giant, January, 1981".Above are links categorized by decade which document visually the images of Schwinn bicycles as far back as 1895.We use vintage catalogs, books, and any other publications we can find to document Schwinn’s history.
Finally, no matter where a company is headquartered, the majority of bikes today are made in China.Custom framebuilders still provide fillet-brazed construction, and tandem framesets were often fillet-brazed when lugs to fit their frame angles were not available.Schwinn advertisements and catalogs of the past provide a colorful, fun and informative history of vintage Schwinn models.If you have any information, corrections, or photos please contact me.Timothy Banas has a master's degree in biophysics and was a high school science teacher in Chicago for seven years.
Gene from web site provided this great info on figuring out your old trusty Schwinn; Schwinn Bike Dating After 1965, Schwinn serial number sequences, while appearing to beconfusing on first sight, follow several general rules.