Bmx Serial Number Identifier

by

30thtbird

Finally riding a big boys bike

Factory Kuwaharas were made in Japan by a few different companies like Tange and Koizumi. Here is a breakdown of the serial numbers found on Kuwahara. Serial Number Registry December 7, 2010 Posted by Racer in DG Serial Numbers. This list was compiled over a couple years by CorvetteJim. With his permission I am reprinting it.

Needed to do this for a while, so here is what I have figured out so far. There has been many people along the way that has contributed and a few that has helped set me straight. hahaah.
I don't know how far back this goes , but I know that Murray used a single letter to represent the year since at least 1949. Most of these bikes up until the early 60's had the serial number stamped on the bottom of the bottom bracket. I have seen the letters MOS stamped on most of these. I ASSUME that they stand for Murray of Ohio Supply. This is usually followed by a - and a single letter. That letter will be the year code. After the year code will be a 2 or 3 digit number that stands for the model number. This excludes bikes built for Sears and Gambles(Hiawatha). Sears bikes had a 502 and Gambles bikes had a WG or a WG and a single digit. Sears bikes then had a 2 - 5 digit number afterwards that stood as the model number and was actually used in there catalogs as the part number. Gambles Hiawathas were the same way.
F = 49
G = 50
H = 51
I = 52
J = 53
K = 54
L = 55
M = 56
N = 57
P = 58
R = 59
S = 60
T = 61
U = 62
W = 63
X = 64
Y = 65
In 65 they were changing there serial number style and by then they were on the left rear dropout. Some 65 bikes had an MO5 which stood for Murray of Ohio 1965. After these 3 digits was a 2 or 3 digit model number followed by and X and a 1 or 2 digit number that I will discuss momentarily.
MO5 = 65
MO6 = 66
MO7 = 67
MO8 = 68
In 69, they changed the layout yet again. They dropped the O. They also went to a 4 digit model number.
M9 = 69
M0 = 70
and so on.
This is what I have so far on the X numbers. We need to add to the list as more show up. Ron and I were talking about these numbers recently. We figure that a customer had to order a minimum number of bikes per order to have there own X number. If they didn't order a minimum number of bikes, they possibly shared an X number with a Murray badged bike. Kenny.
X6 or X6? = Otasco
X7 = BF Goodrich
X10 = Westernflyer (Western Auto)
X12 = All Pro (Kmart)
X13 = Murray
X18 = Hiawatha (Gambles)
X25 = Foremost (JC Penneys)
X28 = ?
X43 = Murray
X55 = Murray
X67 = Sportscrest
X69 = Special for 1969 (in 69 only, could have been used other years as a different meaning)
X70 = Special for 1970 (in 70 only, could have been used other years as a different meaning)
X71 = Sportscrest (?) Also Special for 1971 (in 71 only,could have been used other years as different meaning)
X81 = Murray
X82 = Murray
X83 = Might actually be a Sears number??????
X84 = Murray

All bikes1all have unique serial numbers.

Finding a bicycle serial number

Most bicycles have their serial number engraved beneath their bottom bracket, but sometimes serial numbers are found in other places. Here are some examples of where and what to look for:

  • The bottom bracket (where serial numbers are typically located) is circled.

  • A serial number on the underside of a bottom bracket.

  • Another serial number beneath the bottom bracket, aligned parallel to the frame.

  • Some Schwinn bicycles have the unique identifying number (their serial number) on the head tube. This is on the front of the bike.

  • A serial number located on a rear dropout. Some BMX bikes and a few Schwinn bicycles place the serial on the rear dropout. On older Schwinns there are numbers stamped on both the drive side and non-drive side rear dropouts; the one on the non-drive side dropout is the serial number.

  • Some bikes have multiple serial numbers.2When adding a bike to the Index, it's best to enter all the groups of numbers and letters separated by spaces.

Hopefully you can find the serial number on the bicycle you're looking at -email contact@bikeindex.orgif you're having trouble.

Bmx Serial Number Identifier Lookup

Searching serials on Bike Index

Mongoose bmx serial number lookup

Finding bicycles by serial number on Bike Index is a critical part of our functionality. When searching for a serial number, use our serial search bar - it's the second bar on our search form.

Gt Bmx Serial Number Lookup

We've done a few things to make it more likely that you'll find the bike you're looking for.

Diamondback Bmx Serial Number Lookup

  • Certain numbers and letters are difficult or impossible to distinguish between (e.g. 0 and O, S and 5). We treat all these numbers the same way - a search for 005LLL will match a bike with the serial OOS111.
  • We split bike serials up by spaces and store each separately. If you see multiple numbers on a bicycle - such as in the photo of the Look bike above - try searching for just one of the numbers at a time. Searching for eitherM4106I9CA1 or 200910427-2A will find the bike.
  • We do close serial matching - bikes with serial numbers that are close to the serial you entered are shown below the matching results under the heading 'Serial Numbers Close to ...' - given a search of a serial number with a couple numbers/letters that are different or missing.
  • We do not currently do partial serial searches. If you search for 1234, you will only find bikes with serial numbers of 1234 and serials close to that - not a bike with serial number of 12345689.

Bmx Serial Number Identifier Number

  1. Okay, fine, somaybethere are a few bikes without serial numbers, but this is rare and typical only on hand made bikes or really old bicycles.↩
  2. In this picture200910427-2Ais a manufacturer number and not a serial number. However, to make bikes as easy as possible to find, we'd love it if you entered all numbers you encounter.↩