Schwinn Serial Number Reference

Discussion in 'All Things Schwinn' started by Dave Stromberger, Oct 11, 2014.

  1. #1 Posted Oct 11, 2014

    I'm Afraid I Can't Do That Staff Member System Administrator

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  2. #2 Posted Oct 11, 2014

    I'm Afraid I Can't Do That Staff Member System Administrator

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    If someone wants to add information for serial number prior to 1948, please post that here.

    Please don't reply with discussion beyond that.. I want to keep this thread strictly related to serial number i.d..

    Thanks,
    DS
     
  3. #3 Posted Oct 11, 2014

    Riding a '38 Autocycle Deluxe

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    1946 series Hxxxxx Ixxxxx Jxxxxx A0xxxx (small type face) Bxxxxx
    Cxxxxx (low number)

    Cxxxxx is probably a cusp number between 46 and 47. More on the 47 side.



    1947 series Cxxxxx/Dxxxxx

    1948 series Dxxxxx ect...

    Identifying features:

    Skinny drop outs (1946)
    Razor edge fenders
    Shortie rear fender(early 1946 rare)
    light cover has deep rear screw hole
    Raised or de bossed style AS clamp(rare)
    Non scripted light lens
    Tapered pencil kick stand
    Canti frames have more of a hump to the top tube. (Early)
    Straight bars ie "fat bars" have same dia bottom tubing. (This feature also was found on later years and is not solely indicative of a 1946)
    Rack clamp is a one piece flat band aid shaped plate.
    Rear top stay fender bracket is sometimes tubular on early frames. (I've only seen this on dx models). My 46 rear fender stay mount is taller and more boxy then late 40s 50s style.
    Early 46 tanks have been seen with tapped brackets ie left over snap style prewar tanks.
    Big outtie delta horn button and tank hole (prewar size).
    Chain guard front frame mount tab is thinner with bigger hole.
    Grips will be oval with one tail coming off N without double back crossover(late prewar style)
    Rear chevron will be shorter on 46.
    Drop center rims or sometimes Lobdell flat profile rims.
    1946 bikes have been found with 1941 stamped dogleg cranks
    skinny truss rods.
    Springer pivot bolt rumored to be chrome on early 46?
    Pivot clip was prewar style half clip.(early)
    Springer fenders sported diamond and tombstone reinforcement tabs
    Granted stuff got replaced or got carried over ie pencil stand.
    Note; (A) serial started again in 51 but in regular larger print.
    What I have gathered doing research and asking experts is that the I J and K serials would have been left over prewar BB shells and or frames that had already been stamped prior. A being the first true postwar serial. Hope this helps. Pm me if you have any further questions or would like to add something to the list. Thank you
     
    #3 Obi-Wan Schwinnobi, Oct 11, 2014
    Last edited: Jul 22, 2016
  4. #4 Posted Jan 7, 2015

    Look Ma, No Hands!

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    I have a post war I frame. Here's a pic. Gary
    Iserial04_zps5df0989d-1.jpg
     
  5. #5 Posted Jan 9, 2015

    'Lil Knee Scuffer

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    are tandems also on the list?
     
  6. #6 Posted Jan 9, 2015

    Riding a '38 Autocycle Deluxe

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    Yes and no. The first year that I see any recordings for the Tandem is 1949...... 01/19 ------------------ T001000 ----- T001217 -(TDM)
    The Tandem's SN always started with the T00 during the years the T&C was available and the number was stamped on the rear bottom bracket. I believe after the T&C was discontinued the numbers went to the standard SN recordings and were then stamped on the left rear dropout, and this was sometime in the early 60's. The last entry for the Tandems that I can see was 07/24/1950 ------------------ T002663 ----- T003035 -(TDM)
     
  7. #7 Posted Jan 9, 2015

    'Lil Knee Scuffer

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    thank you sir. mine is a 1965. awesome list
     
  8. #8 Posted Jan 9, 2015

    Wore out three sets of tires already!

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    I believe the original source for the Schwinn serial number information listed in the OP is here:

    Schwinn Date Codes

    From there it links to these pages:

    i.d. FACTS
    1948 through 1952
    1952 through 1969
    1970 through 1982

    Note on the original pages where it states "Copy and print this info at will, it`s FREE.
    BUT If You Steal The HTML And Post It On A Web Page In ANY Format, It Is Illegal"

    In that case it appears that the info in the OP's links was reposted without authorization or credit.

    I would only trust the information from the original source, as copies (especially unauthorized ones) can introduce errors. For example the ORIGINAL 1970 through 1982 page it states: "NUMBERS ARE NOW LOCATED ON THE LOWER LEFT OF THE HEADTUBE (By The Schwinn Badge On The Front OF The Frame)", whereas on the COPIED 1970 through 1982 page it states "Serial #'s are now on the lower left of the headtube, by the Schinn badge on fromt of the frame". :(
     
  9. #9 Posted May 17, 2015

    Wore out three sets of tires already!

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    Wierd! Must have been copied by a third world person.........haha
     
  10. #10 Posted Dec 16, 2015

    Finally riding a big boys bike

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  11. #11 Posted Dec 16, 2015

    Finally riding a big boys bike

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    Or in the case of my 75 Typhoon where everyone is wrong, it is stamped upside down and backwards at the top of the headtube, must have been hung on the line wrong and stamped as hung, because no one stops a production line and keeps their job, unless maybe it's ripping someones arm off.
     
  12. #12 Posted Dec 16, 2015

    Riding a '38 Autocycle Deluxe

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    Schwinn head tubes were fabricated from a flat piece of stock when the fillet brazed frames were no longer and EF came into play. That piece of flat steel for the head tube went thru many stampings, then rolled and then welded together. Here's the deal on the upside down SN. The serial numbers were stamped by an automatic stamping machine and the head tube plate was stamped with a serial number prior to any rolling or welding. Some worker had the head tube plate upside down when he stamped the SN. I've seen a few of these along with a double stamping of the SN. One on the left top upside down and then a different SN stamping on the right bottom in the correct spot. Schwinn quit stamping the SN's when the frame was built when they quit stamping the numbers by hand. All auto stamped SN's were stamped on the component prior to any welding, building of the frame etc.
     
    #12 GTs58, Dec 16, 2015
    Last edited: Dec 16, 2015
  13. #13 Posted Jan 6, 2016

    On Training Wheels

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    I need some help on a serial number. The bike has a head badge that says Shwinn Chicago. It is a Cruiser 5. The serial number is BV 10052. I can not locate BV serial numbers and for all purposes the lists stop at 1982. If it was past 1982, I thought Chicago was out of business. Any help or direction would be great.
     
  14. #14 Posted Jan 6, 2016

    Riding a '38 Autocycle Deluxe

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    Check the headbadge stamping next to the I for the Julian date, which was when the bike was built. BV serial indicates the serial number was stamped February 1984. More than likely a Murray built Schwinn.
     
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  15. #15 Posted Jan 15, 2016

    Finally riding a big boys bike

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    Hello Dave a prewar Schwinn Cycle truck with serial number I38618, when do you believe it was built? Thanks for your help
     
  16. #16 Posted Jan 21, 2016

    I live for the CABE

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    My prewar cycle truck serial # is also an I series with mostly black out parts, i'm still trying to find out what year it is

    IMG_1336.JPG

    IMG_0337.jpg
     
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  17. #17 Posted Jan 26, 2016

    Riding a '38 Autocycle Deluxe

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    Schwinn serial numbers 1928 to 1942

    Schwinn numbers.jpg
     
  18. #18 Posted Jan 29, 2016

    Finally riding a big boys bike

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    Thanks for the prewar serials! where are these are sourced from?
     
  19. #19 Posted Feb 9, 2016

    Riding a '37 Dayton Super Streamline

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    I'm
    I wouldn't take this list as the gospel. My B10E has a serial of 15778 and the '40 BFG I just bought has a serial of E95177 and the original Morrow dated hub puts it at 4th Qtr 1940. The bike may have been sold as a '41 model though? V/r Shawn
     
  20. #20 Posted Feb 9, 2016

    Cruisin' on my Bluebird

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