HOW TO TELL THE MANUFACTURE YEAR OF A SCHWINN?
June 14, 2007
Back to questions
I have a 5-speed Schwinn DeLuxe
The only serial number I could find is on the junction of
the front fork where it is marked G1815172. I know the G
stands for July, but what is the year of manufacture?
From 1959 to 1964 Schwinn used a
serial number format of one letter followed by a bunch of
numbers. The letter stands for the month (with A = January)
and the first number corresponds to the last digit of the
year. So, for example, B900001 means they made the bike
in February 1959. As you correctly guessed, G means they
made your bike in July, and the following number means they
made it in 1961.
Apparently somebody at Schwinn thought
they might run outta numbers, so in 1965 they went to a
format of two letters followed by numbers. The first letter
represents the month, and the second letter means the year
(e.g., AA = January 1965, GB = July 1966). They skipped
the letters I and O to avoid confusion.
During high school in Chicago I
worked next door to the Schwinn plant. Now I know why they
had all those slide rules.