Register your bike
Record your frame number and we will email you the moment that bike is reported stolen on Cyclesite, and block anyone from relisting it here. It is free, it takes under a minute, and it is the one piece of admin that decides whether a recovered bike ever finds its way back to you.
Register a frame number
What registering actually does
You get told, straight away
If a theft report matching your frame number is filed on Cyclesite, we email you the moment it lands. No checking back, no subscription.
The frame gets blocked here
A registered frame number reported stolen cannot be listed for sale on the Cyclesite marketplace. That closes off one of the places a stolen bike gets moved.
A buyer can verify it
Anyone running a free frame check sees the record. When you come to sell, a registered frame is evidence you owned the bike, not just a claim.
How to do it properly
Find the frame number
Almost always stamped under the bottom bracket, where the pedal cranks meet the frame. Turn the bike over and look for 7 to 14 letters and numbers.
Where each brand stamps itRecord it here
Enter the number, add the make and model if you know them, and confirm. Registering creates a free account so we have somewhere to send an alert.
Register with BikeRegister too
Theirs is the database UK police search, and it is separate from ours. Doing both takes a few minutes and covers the two things that matter: police recovery, and resale.
What this register is not
This is the Cyclesite register. It is not the national database UK police forces search when they recover a bike, and we are not connected to that database. If you do one thing today, register with BikeRegister as well. Ours covers the resale side, where a stolen bike gets turned into money. Theirs covers the recovery side, where a found bike gets turned back into your bike. Neither one replaces the other, and neither one is a substitute for a decent lock.
Common questions
- Is this the national bike register the police use?
- No, and it is worth being clear about that. UK police forces search BikeRegister, which we are not connected to. This is the Cyclesite register: it alerts you if your frame number is reported stolen here, and it blocks that frame from being relisted on our marketplace. The two do different jobs, so register with both. It takes a couple of minutes and costs nothing here.
- How do I register my bike?
- Enter the frame number stamped on the bike, add the make and model if you know them, and confirm. Registering creates a free Cyclesite account so we have somewhere to send an alert. You can register more than one bike and remove any of them at any time.
- Where do I find my frame number?
- On most bikes it is stamped underneath the bottom bracket, the shell where the pedal cranks meet the frame. Turn the bike upside down and look for 7 to 14 letters and numbers. Some brands put it on the head tube, the seat tube or inside a dropout instead. We keep a brand by brand guide covering where each manufacturer stamps it.
- Does registering stop my bike being stolen?
- No. Nothing on a register prevents a theft. What a register changes is what happens afterwards: a recorded frame number is how a recovered bike gets matched back to its owner, how a buyer can spot a stolen bike before paying for it, and how a resale attempt gets blocked. Locks and secure storage prevent theft. A register helps you get the bike back.
- How do I check whether a bike is on a stolen register?
- Use the free frame number check. Enter the frame number and it is cross referenced against an international stolen bike registry of over 1.7 million bikes plus theft reports filed by Cyclesite riders, and you get a verdict in seconds. Run it before you hand over money for any second hand bike.
- What happens if my registered bike is reported stolen?
- We email you as soon as a theft report matching your frame number is filed on Cyclesite, and the frame number is blocked from being listed for sale here. You should still report the theft to the police for a crime reference number, and to BikeRegister so it appears in the database forces search.
- Does it cost anything?
- No. Registering a frame number, checking a frame number and reporting a theft are all free, with no limit worth worrying about and no card details taken.
The other two doors
Every Cyclesite listing with a frame number is checked automatically before it goes live, so a registered frame reported stolen never reaches the marketplace.