It was a sequence consisting of a letter followed by two digits, starting with A10, followed by A11 and so on until A99. Here’s a table of the codes and their manufacturing dates: For example, H7634 is the thirty-fourth frame or fork scheduled during August of 1976.
The Earliest Paramount Serial Numbers The very first Paramounts seemed to have had serial numbers starting with “A” followed by two or three digits.
This seems to have been a system started by Emil Wastyn.
Extra Savings if you can combine with: PROMO CODE: CASH GET $10 BACK IN DICK'S CASH FOR EVERY $50 SPENT (UP TO $40) Promotion Dates for Buy Online, Pick Up in Store Earn DICK'S Cash Code: June 28–July 5, 2017 DICK'S Cash Code sent via email within 10 days or by July 12, 2017 Redeem DICK'S Cash Code: Code eligible from date received through July 19, 2017 I'm looking at pulling the trigger on the Nishiki 29'er because they're finally in stock on the 22" frame, but I'm wondering if I missed the deal on this GT Agressor (was it a better bike than Nishiki when it was also priced at $300? Guy in the bike department was knowledgeable and helped me decide on a 20" over a 22".
) https://slickdeals.net/f/10039156-gt-mountain-bikes-adult-aggressor-pro-or-women-s-laguna-pro-50-off-for-300-free-shipping? The 22 was already built but the 20 was a better fit and he had it assembled for me while we were still in store.
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".
The ordinal dating was adopted for Schwinn's domestic production in 1976.
Some Japanese bikes may have an 'X' in the month position of the frame serial number.
Notes: This tool works for Schwinn bikes from 1948 to 1982.