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How To Find BMX Bike’s Serial Number ?

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How to find BMX Bike’s Serial Number is a question for many people, so in this article you can find out how to find the serial number of BMX bike.

Many BMX riders are often seen with their bikes, and a serial number is typically on them. In order to make sure you’re riding the right bike, you want to know what the serial number means. The best way to find out if your bike has the right stuff is by intimately knowing what those numbers mean.

Do you know where to find your BMX bike’s serial number?

If not, it is typically on the down tube in front of the crank. How do you read the numbers? The most common serial number system for BMX bikes is a five-digit code such as 4150 or K9100.

What does this actually mean?

The first number refers to what year it was produced. So, a BMX bike with the serial number K9100 would be produced in 2001. The second digit is typically a letter representing what month it was made in; A=January, B=February, etc., and then followed by a single digit representing the date within that month (i.e., 41 would mean April 1). The third digit is a letter representing the bike’s model.

So, if the serial number on your bike says 4150, that indicates it’s a “K” model, which differs from other models such as a 4250 or 8500. The fourth and fifth digits are added to offer further distinction to a specific individual frame. Often this means it was produced on an assembly line that had multiple bikes with the same general parts set, but they were made at different times by separate people in the company.

What Types of BMX Bike’s serial numbers:

1) Serial Number (SN) – The first seven digits show the date of production for the bike frame or fork. The last six are specific to each bike. Since many different companies often produce bikes with identical frame designs and components, it is possible for a “serial number” to represent more than one bike from any given company.

2) Frame Number (FN) – The first eight digits that follow the SN show the frame serial number of the bike.

  • 2a) Frame Serial Number (FSN) – The last five digits that follow the FSN show this number is specific to the particular bike. Frame serial numbers are used in place of frame assembly codes. They allow for a much more accurate way to track bikes and provide a unique identifier for bikes.

3) Machine Serial Number (MSN) – The last eight digits that follow the MSN show the serial number of each individual machine used to build a bike frame.

4) Serial Number Line (SNL) – The first eight digits that follow the SNL show the location at which each bike frame was built. The last two digits indicate what production line each bike frame was produced on. (1=G, 2=A, 3=E, 4=D and 5=F). They do not indicate any specific order in which frames were produced.

5) Frame Assembly Number (FAN) – The first nine digits that follow the FAN show the order in which frames were built. This six-digit code indicates the order within a given assembly line where frames were made.

6) Frame Check Number (FCN) – The last four digits that follow the FCN show the number of bikes produced from a single mold. A mold is used once to produce a given component or component set for the frame and is then discarded. Those frames made using the same mold will have a matching FCN number.

7) Date Code – The date code consists of two letters followed by four numbers and indicates the week and year in which production began. For example, “AC02″ means that production began during week 28 in 2002. Some companies use all upper case letters (e.g. “AC02″), while others use upper case with the first letter lower case (e.g. “ac02″).

8) Company, Plant, Frame, and Machine Codes – The letters following the date code indicate which company produced the bike frame or fork, what plant the bike was made at, and the number of machines used to create it. These codes are not all standardized in terms of their meaning. Different companies may use them differently or mean something entirely different if a particular company uses them.

9) Model Number – Many bike companies and individual builders use this number to identify their bikes. The model number usually has a letter designator followed by a series of parts, materials, and features that may be different from bike to bike. Sometimes the letters are close together, but other times they are spread out across several digits. This gives owners the flexibility to rename their bikes to whatever they want because it’s unnecessary to create a new frame number or serial number if they want a completely different frame that still utilizes the same name, components, or features as they already have own.

10) Frame Serial Number (MSN) – the last eight digits that follow the MSN show the serial number of each particular machine used to produce a bike frame. The first two digits indicate which plant each frame was produced on. The next two digits indicate which line each frame was made on within a plant. Frames made on line 1 at plant A will have an MSN starting with “1A”. Frames made in plant B on line 4 would have an MSN starting with “4B”.

11) Production Grouping Identifier (PGID) – The first three digits after the PGID are the date code that indicates when production began for this grouping of frames. The next two digits indicate what period of production the frame was made in.

12) Production Group Serial Number (PGS) – The first three digits following the PGS indicate the date code of the frame’s production group. The next 3 or 4 digits are the production period in which it was made.

13) Country of Origin (CO) – If a frame is made in Canada, one or two letters may follow the last five digits. The letters indicate the country in which it was produced. For example, “CA” indicates that it was manufactured in Canada. Sometimes a bike marked as “U” indicates that it was produced by a United States-based company rather than in another country like China.

BMX production began in Los Angeles, California, in the mid-1950s. Originally only those bikes produced by Schwinn could be called BMXs (Schwinn built 5% of all bikes sold in 1953). In 1958, Duke Manufacturing was incorporated, and its first products were the Commando and the Mustang. It quickly became one of the five largest bike manufacturers in the 50s and 60s. In 1975, Duke moved operations to Thailand, where they built frames until 1998, when they closed production. Diamond Back resumed BMX production in 1999; however, they closed again in 2005. The largest manufacturer of BMXs is Schwinn in Independence, Missouri. It began producing bikes in 1973, and it remains the largest manufacturer in the market today.

We hope that in this article you will be able to know How To Find BMX Bike’s Serial Number.

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