Mongoose BMX New School Serial Number Guide

If you're looking to find out the year of your new school 2000 to 2009 Mongoose BMX bike, this guide will help you locate and read the serial number on your frame.

Below we list the most common Mongoose BMX serial number formats, of course, given the many factories that made frames for Mongoose from 2000 to 2009, we've done our best to list them all. Sorry if your BMX serial number format is not included. We're updating information all the time.

The serial number on Mongoose BMX bikes does not indicate model.

New school 2000-2009 models

The serial number is located under the bottom bracket. The format is a string of numbers and letters.

Most New School Models

Eg: HAMLH0485
The fourth letter indicates the year of manufacture.

For the example above L = 2002.

The fifth letter indicates month of manufacture.

For the example above H = August.
The rest of the numbers are the frame number.
This frame was built August 2002. This bike is a 2003 model.

Other New School Models

Eg: SNGNP05G33775
The first two numbers after four of five letters indicates the year of manufacture.
For the example above 05 = 2005.
The letter directly after the year indicates the month of manufacture.

For the example above G = July.
The rest of the numbers are the frame number.
This frame was built July 2005. This bike is a 2006 Model.

Alloy models

Eg: H0K42136
The first number after one or two letters indicates the year of manufacture.
For the example above 0 = 2000.

The letter directly after the year numbers indicate month of manufacture.

A	B	C	D	E	F	G	H	I	J	K	L
JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC

For the example above K = November.
The rest of the numbers are the frame number.
This frame was built November 2000. This bike is a 2001 model.

Build Year versus Model Year

The serial number will only give you the bike's build year and month. This is not the model year or the year the bike was released and sold in shops. All bikes had a production lead time. If the frame was USA made, the production lead time was plus 3-6 months. If the frame was made in Taiwan this was plus 6-9 months. This is important if you are restoring and want to know what decals the frame would have originally had. The last thing to note is that the serial number on Mongoose BMX bikes does not indicate model.

Serial Number Examples

On each BMX Catalogue model page we summarise the serial numbers for that model. We also list a few example serial numbers to help you identify the date of your frame.