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This is the case with the 2003 Mongoose Brawler 24 below. So a build date on a frame of 2003 usually means the bike was sold in stores in 2004. Frames were normally manufactured the year before being sold in bike shops. Please note: The Mongoose serial number will give you the build date of your BMX.
P is the year (2006), J is the month (Oct) SAJ PJ00706 – 5 letters, PJ are the dates. M is the year (2003), E is the month (May) HAM ME00000 – 5 letters, ME are the dates. The 4th letter corresponds to the year of manufacture and follows on from the mid-school serial numbers. New-school Mongoose BMX bikes built through most of the 2000’s have a serial number that begins with 5 letters. B is the year (1992), H is the month (Aug) HF BH00000 – 4 letters, BH are the dates. G is the year (1997), B is the month (Feb) HF GB00000 – 4 letters, GB are the dates. Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec The 4th letter indicates the Month A B C D E F G H I J K L The 3rd letter corresponds to the year of manufacture. Mid-school Mongoose BMX bikes built through most of the 90’s have a serial number that begins with 4 letters. This is not always the case and there will be some bikes that do not fit into this formula.
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Mongoose serial numbers are usually found stamped on the bottom of the bottom bracket.
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I spent quite a bit of time looking into these numbers on hundreds of bikes mine as well as other Mongoose BMX owners to see if my serial number crack was right. Mongoose serial numbers through the 1990’s and 2000’s are much more complex. There were a few variations on this type of serial number, but usually they were pretty easy to work out. The last numbers after the month - 0652 are the production line number. The fourth digit is the production month G = July based on the convention January (A), February (B), March (C), April (D), May (E), June (F), July (G), August (H), September (I), October (J), November (K), December (L). The second digit is the the year - 6 = 1986.
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The first digit is the factory code - M = Merida. For example my 1986 Mongoose Expert has a serial number M6EG0652. Generally the year, model and month of build was stamped as the first part of the serial number. Late 1980’s and a few very early 90's had pretty easy serial numbers.
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It seemed nobody figured out how to read the serial numbers. The problem was there was no information helping to date Mongoose BMX bikes built from 2000 onwards. However, there are a few BMX restorers who have painstakingly attempted to decipher these multi-digit mysteries.Ī big part of buying, rebuilding and restoring old BMX bikes, is knowing exactly how old they are. When I started looking into finding out how to read Mongoose serial numbers I found plenty of information on Mongoose BMX bikes made in the 80’s and early nineties through google and BMX forums. Mongoose serial number information has never really been properly documented, possibly lost as the company changed hands and moved production.
There were many different factories making Mongoose BMX bikes and all had different serial number codes. The guide covers many serial numbers but not all. Find our what year your BMX was built and sold and date mid school and new-school bikes made between the mid 90’s to mid 2000’s.
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Register your bike with one of the bike registration organisations.Your guide to old Mongoose serial numbers. So, don’t be one of those people! Go and find your serial number now. Which means that the chances of them getting their bike when it’s stolen are tiny. Unfortunately it doesn’t seem to matter how much we bang on about how important this is! Because over 80% of cyclists don't know their frame number. If the police recover your bike, they'll use the serial number to link it to you.Īnd it’s the serial number that will prove to anyone that the bike is definitively yours. You use the serial number to register your bike with the various registration schemes such as Bike Index, Bike Register and Project 529. That’s because when your bike is stolen, it’s the serial number that gives you the biggest chance of getting it back. You will hear many people (including me) banging on about the importance of knowing your bike serial number. The best way to read a bicycle serial number is to search the web for “ bike serial number decoder”. And the remaining numbers indicate the specific ID of that bike. But the first numbers usually indicate the year, and then month of manufacture. It helps the manufacturer and bike shops with inventory, making it easier to match compatible parts to that bike.Įach manufacturer has their own identification system. A bicycle serial number is a unique number allocated to your bike by the manufacturer.