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Schwinn Serial Numbers 1980%27s




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Schwinn serial number sequences, while appearing to be confusing on first sight, follow several general rules. If the first letter is a 'A' through 'M' it refers to production month ('A' = January, 'B' = February, etc.). The letters 'I' and 'O' are not used, to avoid mistaking them for numbers. If there is only one letter in the first two. To estimate the value of a Schwinn bike, find its serial number, which should be stamped under the crank, by the rear axle, or between the front forks. Search this serial number online to determine the date of manufacture.

Serial #'s are now on the lower left of the headtube, by the Schinn badge on fromt of the frame
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Numbering system:

The first letter is the month, the second letter is the year.
I and O are skipped so as to avoid confustion with 1 and 0.

Examples:
AF***** = Jan. 1970,... ('A' = Jan., 'F' = 1970)
GL***** = July. 1975,... ('G' = July., 'L' = 1975)
MR***** = Dec. 1980,... ('M' = Dec., 'R' = 1980), etc.
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JANUARY, ---------------------------- AF*****
FEBRUARY, -------------------------- BF*****

Schwinn Serial Numbers Digit


MARCH, ------------------------------- CF*****
APRIL, --------------------------------- DF*****
MAY, ----------------------------------- EF*****
JUNE, ---------------------------------- FF*****
JULY, ---------------------------------- GF*****
AUGUST, ----------------------------- HF*****
SEPTEMBER, ------------------------- JF*****
OCTOBER, --------------------------- KF*****
NOVEMBER, ------------------------- LF*****
DECEMBER, ------------------------- MF***** JANUARY, ---------------------------- AG*****
FEBRUARY, -------------------------- BG*****
MARCH, ------------------------------- CG*****
APRIL, --------------------------------- DG*****
MAY, ----------------------------------- EG*****
JUNE, ---------------------------------- FG*****
JULY, ---------------------------------- GG*****
AUGUST, ----------------------------- HG*****
SEPTEMBER, ------------------------- JG*****
OCTOBER, --------------------------- KG*****
NOVEMBER, ------------------------- LG*****
DECEMBER, ------------------------- MG***** JANUARY, ---------------------------- AH*****
FEBRUARY, -------------------------- BH*****
1980MARCH, ------------------------------- CH*****
APRIL, --------------------------------- DH*****
MAY, ----------------------------------- EH*****
JUNE, ---------------------------------- FH*****
JULY, ---------------------------------- GH*****
AUGUST, ----------------------------- HH***** Schwinn serial numbers 1980
SEPTEMBER, ------------------------- JH*****
OCTOBER, --------------------------- KH*****
NOVEMBER, ------------------------- LH*****
DECEMBER, ------------------------- MH***** JANUARY, ---------------------------- AJ*****
FEBRUARY, -------------------------- BJ*****
MARCH, ------------------------------- CJ*****
APRIL, --------------------------------- DJ*****
MAY, ----------------------------------- EJ*****

Schwinn Serial Numbers 1980's

JUNE, ---------------------------------- FJ*****
JULY, ---------------------------------- GJ*****
AUGUST, ----------------------------- HJ*****
SEPTEMBER, ------------------------- JJ*****
OCTOBER, --------------------------- KJ*****
NOVEMBER, ------------------------- LJ*****
DECEMBER, ------------------------- MJ***** JANUARY, ---------------------------- AK*****
FEBRUARY, -------------------------- BK*****
MARCH, ------------------------------- CK*****
APRIL, --------------------------------- DK*****
MAY, ----------------------------------- EK*****
JUNE, ---------------------------------- FK*****
JULY, ---------------------------------- GK*****
AUGUST, ----------------------------- HK*****
SEPTEMBER, ------------------------- JK*****
OCTOBER, --------------------------- KK*****
NOVEMBER, ------------------------- LK*****
DECEMBER, ------------------------- MK***** JANUARY, ---------------------------- AL*****
FEBRUARY, -------------------------- BL*****
MARCH, ------------------------------- CL*****

Schwinn Serial Numbers 1980's Movie


APRIL, --------------------------------- DL*****
MAY, ----------------------------------- EL*****
JUNE, ---------------------------------- FL*****
JULY, ---------------------------------- GL*****
AUGUST, ----------------------------- HL*****
SEPTEMBER, ------------------------- JL*****
OCTOBER, --------------------------- KL*****
NOVEMBER, ------------------------- LL*****
DECEMBER, ------------------------- ML***** JANUARY, ---------------------------- AM*****
FEBRUARY, -------------------------- BM*****
MARCH, ------------------------------- CM*****
APRIL, --------------------------------- DM*****
MAY, ----------------------------------- EM*****
JUNE, ---------------------------------- FM*****
JULY, ---------------------------------- GM*****
AUGUST, ----------------------------- HM*****

Schwinn Serial Numbers 1980's List


SEPTEMBER, ------------------------- JM*****
OCTOBER, --------------------------- KM*****
NOVEMBER, ------------------------- LM*****
DECEMBER, ------------------------- MM***** JANUARY, ---------------------------- AN*****
FEBRUARY, -------------------------- BN*****
MARCH, ------------------------------- CN*****
APRIL, --------------------------------- DN*****
MAY, ----------------------------------- EN*****
JUNE, ---------------------------------- FN*****
JULY, ---------------------------------- GN*****
AUGUST, ----------------------------- HN*****
SEPTEMBER, ------------------------- JN*****
OCTOBER, --------------------------- KN*****
NOVEMBER, ------------------------- LN*****
DECEMBER, ------------------------- MN***** JANUARY, ---------------------------- AP*****
FEBRUARY, -------------------------- BP*****
MARCH, ------------------------------- CP*****
APRIL, --------------------------------- DP*****
MAY, ----------------------------------- EP*****
JUNE, ---------------------------------- FP*****
JULY, ---------------------------------- GP*****
AUGUST, ----------------------------- HP*****
SEPTEMBER, ------------------------- JP*****
OCTOBER, --------------------------- KP*****
NOVEMBER, ------------------------- LP*****
DECEMBER, ------------------------- MP***** JANUARY, ---------------------------- AQ*****
FEBRUARY, -------------------------- BQ*****
MARCH, ------------------------------- CQ*****
APRIL, --------------------------------- DQ*****
MAY, ----------------------------------- EQ*****
JUNE, ---------------------------------- FQ*****
JULY, ---------------------------------- GQ*****
AUGUST, ----------------------------- HQ*****
SEPTEMBER, ------------------------- JQ*****
OCTOBER, --------------------------- KQ*****
NOVEMBER, ------------------------- LQ*****
DECEMBER, ------------------------- MQ***** JANUARY, ---------------------------- AR*****
FEBRUARY, -------------------------- BR*****
MARCH, ------------------------------- CR*****
APRIL, --------------------------------- DR*****
MAY, ----------------------------------- ER*****
JUNE, ---------------------------------- FR*****
JULY, ---------------------------------- GR*****
AUGUST, ----------------------------- HR*****
SEPTEMBER, ------------------------- JR*****
OCTOBER, --------------------------- KR*****
NOVEMBER, ------------------------- LR*****
DECEMBER, ------------------------- MR***** JANUARY, ---------------------------- AS*****
FEBRUARY, -------------------------- BS*****
MARCH, ------------------------------- CS*****
APRIL, --------------------------------- DS*****
MAY, ----------------------------------- ES*****
JUNE, ---------------------------------- FS*****
JULY, ---------------------------------- GS*****
AUGUST, ----------------------------- HS*****
SEPTEMBER, ------------------------- JS*****
OCTOBER, --------------------------- KS*****
NOVEMBER, ------------------------- LS*****
DECEMBER, ------------------------- MS***** JANUARY, ---------------------------- AT*****
FEBRUARY, -------------------------- BT*****
MARCH, ------------------------------- CT*****
APRIL, --------------------------------- DT*****
MAY, ----------------------------------- ET*****
JUNE, ---------------------------------- FT*****
JULY, ---------------------------------- GT*****
AUGUST, ----------------------------- HT*****
SEPTEMBER, ------------------------- JT*****
OCTOBER, --------------------------- KT*****
NOVEMBER, ------------------------- LT*****
DECEMBER, ------------------------- MT*****

1990's Schwinn Serial Numbers

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During the 1980s, Greenville used the old letter-digit
(e.g. F8 = June 1988) system which Chicago stopped using in 1965,

Schwinn Serial Numbers After 1982

changing to the two-letter system.

Schwinn Serial Numbers 1980's Model

For newer bikes:
there's a 4 digit serial number lightly stamped onto the headbadge.
The first three digits are the numerical day of the year,
and the last digit is the last digit of the year.

Example:
3654 is 12/31/84 or 94 or (?).