Hello, I could not find the serial number for my bike, SD07MD8575.
If you could find details on this, I'd be grateful.
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If you could find details on this, I'd be grateful.
That number is from a bike much later than 1983. A pic or two would narrow it down.
SD07MD8575. 2007 December. Made in China for Pacific, sold via Walmart. Most common Schwinn branded model from that era was the Frontier. A Pacific Schwinn number is indistinguishable from a Pacific Mongoose or Pacific Avigo or a Pacific Roadmaster or Pacific Huffy or Pacific Hello Kitty or Pacific Dyno, Dora the Explorer, Spiderman, Cannondale kids bikes, Paw Patrol, etc. Many Pacific bikes start with 5 letters but not all. The first 5 (or 2) letters generally do not match up to any of the many Pacific brands or models. The next 2 numbers are the year. Then the next letter is the month.
The Schwinn serial look up tool is for the mass production bikes made in Chicago until the factory closed in 1983.
There were some Japanese built Schwinn branded 10 speed bikes with serials that could start with SD but would only have numbers after the first 2 letters (Le Tour, Super Le Tour, Passage, etc).
The Schwinn serial look up tool is for the mass production bikes made in Chicago until the factory closed in 1983.
There were some Japanese built Schwinn branded 10 speed bikes with serials that could start with SD but would only have numbers after the first 2 letters (Le Tour, Super Le Tour, Passage, etc).
Hi! I have a Schwinn Cruiser serial # DU507264. Can you help me figure out what year it is? Thanks!!
DU should be April '83…but, that serial format was supposedly changed in '82. 
The last Chicago Schwinns were sold in 83, although that serial number list stops in 82. I'd say it's an 83 if it's a Chicago bike.
If you show a few detailed pics, the spec can usually help give up the year as well.
Thanks! Sorry it took me a few days to get it out of the garage.
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That is a '83 or later, maybe a Hungarian Schwinn. No S-2 wheels not sure when they dropped them guessing late '80s
Check the bottom bracket for a ridge like seam, that would be a Chicago bike.
Hello Patrick,
I have a an eye on an old repainted Schwinn that strikes me as a potential find. SI989668.
Has what appears to be remolds tube frame. Not ready for 150 mile round trip on a bad picture (yet). Thanks so much.
I could not find mine either: SNMNG12K14895
On the last two posts, those numbers are for later Schwinns, the lookup tool is for Chicago Schwinns to 1983. Pics are the best way to narrow down when it was built on later bikes.
Hi - I purchased a used pearl blue Chicago 27" 10-speed Traveler from Beverly Schwinn in Chicago back in 1983 or 84. The SN is 2347611. Appears from the catalogs that the 27" started in 1980 (the online SN tool comes back with a 1950s date). Assumption is that its from 1980-83. Mine is two toned with some white on it. I live in the Montana mountains on gravel so had not ridden it in 30+ years but just did and the tires disintegrated 
Is there a 4 digit number on the heradbadge?
Hi Wildcat! Yes, it has 3571 stamped on the badge. Does that help identify?
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