User Name: * Password: * Schwinn Serial Numbers and Date Codes Dates between 1948 and 1958 are available because Schwinn kept good records. From 1958 on, several different coding systems were used, from which the manufacture date (and often the assembly date) can be decifered.

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All serial number records before 8/18/1948 were lost in a factory fire. For pre-1948 Schwinns try taking out the crankset to check for a date code. If you have a Schwinn from this era, please, PLEASE send us pictures of your bike and serial number (). We are in the process of collecting pre-1948 serial numbers in the hopes of rebuilding the date code system for this period.

(CT = Cycletruck; WZ, S-10 = Whizzer; Tdm = Tandem.) Schwinn's built-in kickstand was introduced in 1946. 1948 1951 The DX frames were part of the Schwinn line by 1939. The DX style frames have a lower top-tube (for lack of a better name) that curves ever so slightly, however the chainstays on the Schwinn D97XE-OS (1939-41) run roughly parallel to the ground while the chainstays on the D97XE-6 (1941) and the D-13 (1953) droop slightly as they travel from the rear dropouts to the bottom bracket.

The -OS frame style seems to have been completely replaced by the more curvaceous -6 style by 1946. I have not found any examples of the DX frame style after 1953 although the 24 inch wheel size equivalent, the J series, was around at least until 1955. 1952 1953 1954 I have found heart-pattern skip-tooth cranksets on Schwinns as late as 1954 and as early as. 1955 1956 The Feather style chain guard was used between 1938 and 1956. 1957 I have found this decal on Schwinns from 1938 to 1959.

1958 New numbering system begins April 17, 1958: First letter is the month; first digit is the year. D136694 = April 1961. I and O skipped to avoid confusion with one and zero.

1958 - 1959 - 1960 - - - - 1964 - New numbering system: First letter = month; second letter = year. 1965 - 1966 - 1967 - AC00000 - AD00000 - AE00000 - AF00000 The serial number was moved from the left rear dropout to the headtube between 1970 and 1971. - AG00000 - AH00000. 1977 - AN00000. 1978 - AP00000. 1979 - AQ00000.

1980 - AR00000. 1982 - AT00000. Le Tour and Super Le Tour models sometimes began with an 'S' followed by the Japan Made numbering system: 1972 - SA200000. 1973 - SA300000. 1974 - SA400000. 1975 - SA500000.

1976 - SA600000. 1977 - SA700000. 1978 - SA800000. 1979 - SA900000. 1980 - SA000000. 1981 - SA100000. 1982 - SA200000.

1983 - SA300000. In the 1980s, the 'S' began appearing in other models as well ( Passage, Prelude). 1984 - SA400000.

1985 - SA500000. 1986 - SA600000. Modelo vista controlador java netbeans pdf. Japan Made numbering system: Letter is the month, number in the first or second position is the year. 1971 - A100000. 1972 - A200000. 1973 - A300000.

1974 - A400000. 1975 - A500000. 1976 - A600000. 1977 - A700000. 1978 - A800000. 1979 - A900000.

1980 - A000000. 1981 - A100000.

1982 - A200000. Locating the Serial Number 1960 - 1969 Chicago built Schwinn serial numbers are found on the left rear axle-hanger or fork-end on the frame. V67505 = 1956 1970 - 1979 Chicago built Schwinn serial numbers are on the headtube of the frame where the fork enters from the bottom.

LG091296 = December 1971 If it's not there, check the bottom of the bottom bracket (where the pedals go into the frame of the bike). AY00H11858 = 2000 The Chicago serial numbers consist of a letter representing the month of manufacture, a number indicating the last digit of the year (1960 - 1964; 0=1960, 1=1961, etc.) or a letter indicating the year (1965 - 1979; A=1965, B=1966, etc.), followed by a sequential series of five or six digits (e.g. A367584 or CB77584). If letters were used for date codes, they skipped the letters 'I' and 'O' as they looked too much like numbers. Note: This scheme is for all Chicago built non-Paramount models excluding 1962-1963 Superiors and 1964-1969 Super Sports (whose serial numbers are located on the left rear axle hanger and consist of a single letter code for the month [again, skip 'I' and 'O'], the last digit of the year and a 3-digit sequential build number -- e.g. 'K6018' is the 18th frame built in October of 1966). The 1970 Super Sports with Huret dropouts seem to have used a two digit year ('C70204' -- March, 1970, 204th frame).