Bike Serial Numbers: Look Up, Importance, Registration and More

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Getting a new bike for yourself can be very exciting, there is this urgency to take it out for a spin, test it out, but there is something that you need to do before all that. You need to find and check out your bike’s serial number as it is a very important feature.


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Did you know that the serial number is the most important feature of your bike regardless of the components? If your bike gets stolen, unfortunately, your serial number will play a very critical role in retrieving it. According to various law reports from the past decade, less than 20% of the owners know their bike’s serial numbers. 

What Are Bike Serial Numbers?

“Bike Serial Numbers are a series of digits between 6 to 10 digits. Alternatively, they are also called bike frame numbers”.

Bike Serial Number
Bike Serial Number

We can’t emphasize this enough but your bike serial numbers are very critical, and you will have to rely on them a lot in case they go missing or get stolen. Pictures won’t be enough as the authorities will use the bike’s serial number to track it down. 

An example of Bike Serial Number: BS 6102-1:1992

Where You Can Find The Bike Serial Number?

Finding your bike’s serial number is easy, they are located under the bottom bracket, simply the area where the two pedals join up. They will be a series of numbers ranging between six and ten digits, although if you can’t find them, there is no need to worry. Apart from the bracket underneath, there are plenty of areas where your serial number can be located.

Locating Your Bike Serial Number
Locating Your Bike Serial Number

Try checking the seat tube, the rear of the bike, the front, you are bound to find it somewhere on your bike. The 5 most common serial number locations are:

  1. Underside of crank
  2. Headset
  3. Rear stays
  4. Seat downtube next to crank
  5. Top of crank

Once you have managed to find the serial number, you have to make a backup of it. There are plenty of ways of doing it:

  • You can email the serial number to yourself and save it under the priorities
  • Save it to your iCloud 
  • Take Pictures of it and make backups of it  

The pictures will come especially be handy if you have to hand them over to the police if your bike gets stolen. Chances are that you will also find a sticker next to the serial number. These stickers are proof of warranties that are put there by the manufacturers, if there is a need for replacement or repairs, the stickers will be the verification you need.

How Warranty Claims Actually Work?

Warranty Claims
Warranty Claims

Claiming your warranty against your bike is very important, and you need to know how it all works before we can get started with that. Manufacturers only need three important bits of information to process the warranty claim:

  • Bike Make
  • Bike Model
  • Bike Serial Number

You should know that the bike make and model are very important and the manufacturers consider them first, the reason is that sometimes, some models get discontinued thus it becomes very difficult to gather information about them. Bike serial numbers are also very important, nowadays you see that many people are using fake/counterfeit so the authentic serial numbers help manufacturers track their bikes.

Plus, these serial numbers sync with the production and shipping dates, making the manufacturer’s job easier. The last thing that the manufacturers would want from you is a receipt or proof of purchase. The receipt shows whether the bike was purchased new or second-hand. The time frame of purchase can also be known, so the warranty can come into effect.

Do E-Bikes Also Have Serial Numbers?

Some people have a misconception that E-bikes don’t have serial numbers, that is certainly not the case. E-bikes have serial numbers at the same places where the normal bikes have it and you can check them out there.

The Importance of Bike Serial Numbers

Importance Of Bike Serial Numbers

As per law reports, less than 20% of bike owners know about their bike’s serial numbers, this is because they think they would never need it or they aren’t necessary. Although the truth is, unless you know the importance of them, you will never know what might actually happen in the future.

The bike’s serial number acts as an identification number and is very useful for tracking it down in case it gets stolen or goes missing. Serial numbers are more vital and important than device trackers so keep that in mind. 

Here’s an example of your bike’s serial number importance. There are hundreds if not thousands of identical bikes as yours out there, what will be the main thing making them different-Serial Numbers! These numbers won’t be the same and will stand out in the crowd!

Bike serial numbers also fasten the search for missing bikes and you need to keep that in notice because most of the time bikes don’t get stolen for re-use. They get stolen for scrap and extra parts that can be sold at premium prices.

With the knowledge of bike serial numbers, you would be able to stop the criminals and protect your bike before it’s too late.

The Importance of Registering Your Bike

After you have made the backup of your bike’s serial number you need to get it registered ASAP. Registering it will prove through the database that you are the owner and in case it gets stolen, it can be traced back to you without any kind of problem. Don’t have the thought that you will register it someday, you need to do it as soon as you get the chance.

Having this kind of thought can result in serious problems, what if it is too late and you still don’t have your bike’s serial number, surely you will regret it then!

If you think bike registration is a chore then you are mistaken, now you can get bikes registered almost everywhere. Although do make sure that the registration services are national or international.

Examples of great bike registration services are Bike Register and 529 Garage.

Apart from dedicated service providers, you would be able to register your bike with the police department. Although this is limited to some cities like New York and Chicago. After successful registration, you will get a sticker to put on your bike which will act as proof of registration. These stickers will work as charms of warding off spells against robbers.

How To Register Bikes In The Absence Of Serial Numbers?

You have looked everywhere for your bike’s serial number but it is nowhere to be found! Fret not, there is no need to worry. Fortunately, you can still get your bike registered. You can contact any bike registration company and get a registration kit, in it you will find a sticker to put on your bike. The sticker will then act as the proof of ownership, fun thing is that the stickers are also waterproof so they won’t get washed away.

Alternate Ways For Bike Protection

Bike Protection
Bike Protection

Bike serial numbers are great tools for protection and tracking down your stolen bike but there are also some alternatives you can use. The first thing that you can do is have an amazing bike storage area, no one can steal it if they can’t access it right? Check out amazing storage ideas here.

Another method is to get a bike tracker, with these you can have unlimited surveillance on your bike. You can find amazing trackers here.

How To Check If Your Bike Is Stolen?

Getting a bike second hand is always risky, you cannot tell if it is the real genuine thing or if it is stolen. That is why you need to be very careful when getting second-hand bikes. What if by some chance the bike that you got is stolen and how can you confirm the suspicion? We get second-hand bikes for the sake of saving money but still getting amazing products, and sometimes we overlook some things that we shouldn’t.

You need to be careful and check out some things before finalizing the deal, be on the lookout for these things:

  1. Look up the bike serial number, all the tracking sites would be able to show if the bike has been reported missing or is genuine.
  2. The bike’s price could be way less than the market, and if there isn’t anything to justify the price cut like damage or missing component then know the bike is stolen.
  3. If you can’t seem to locate the bike serial number like it has been damaged or scratched then know it is stolen.
  4. The seller could have less or no information at all about the bike, be on the lookout for these kinds of sellers.


Can you look up a bike serial number?

Yes, you look up your bike’s serial number. They are usually situated under your bike’s bottom bracket.

How can I check if my bike is stolen?

You can tally your bike’s registration number with any bike registration service, if it is crossed out then it means that it is stolen.

Do police find stolen bikes?

Yes, police are very effective at finding stolen bikes.


Getting to know your bike’s serial number might have come as a shock or something that you never expected to do but they are of utmost importance. Purchasing a bike and then protecting what is yours is very necessary. After going through this article, you might have gotten the importance of memorizing the serial numbers, after all, they are for your benefit.

Keep your eyes open and be very familiar with your bikes!

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