Bike Theft in Amsterdam: Why Your Frame Number Matters More Than Your Lock
Amsterdam sees more than 210 bicycle theft reports a day, over 76,000 a year, making it one of the worst cities in the world for bike theft despite being famous for cycling. The single most important thing you can do before anything is stolen is know your bike's frame number, because the national theft database, the RDW fietsdiefstalregister, only lists a bike as stolen once you've filed an official police report (aangifte) with that number, either online via politie.nl with DigiD, by phone at 0900-8844, or in person. Without the frame number on file, recovery is essentially impossible even if your bike turns up. Separately, if your bike disappears from where you parked it, check the city's fietsdepot before assuming it was stolen: Amsterdam removes bikes that are parked dangerously, illegally, left too long in one spot, or look abandoned, and holds them at a depot in the western harbour area rather than destroying them immediately.
The Scale of the Problem: This Isn’t a Rare Event
If you’ve just moved to Amsterdam and haven’t yet had a bike stolen, statistically, you’re the exception rather than the rule. According to Bikebaze.nl, Amsterdam sees more than 210 bicycle theft reports a day, which adds up to over 76,000 reported thefts a year. That’s a genuinely striking number for a city famous worldwide for cycling, and it’s exactly why the practical steps below matter more here than they might in most other places you’ve lived.
The Official Rule: Your Bike Only Gets Registered as Stolen When You Report It
This is the detail that catches the most people off guard, and it’s worth understanding before you ever need it. The RDW fietsdiefstalregister, the Netherlands’ national bicycle theft database, doesn’t automatically know your bike exists, let alone that it’s missing. According to the RDW’s own explanation, a bike is only entered into the register once its owner files an official police report (aangifte) that includes the frame number or chip number, and the registration then happens automatically from that report.
- Know your frame number before anything happensAccording to police guidance on filing reports, the frame number, usually printed on your proof of purchase and also physically stamped on the frame near the pedals or under the seat, is the single piece of information that matters most.
- File a police report (aangifte) once it's stolenDo this online through politie.nl using DigiD, by calling 0900-8844 to arrange an appointment, or in person at a police station.
- Your bike enters the national register automaticallyOnce the report is filed with the frame or chip number, it appears in the RDW fietsdiefstalregister, searchable by frame number, chip number, or serial number.
- Buyers, sellers, and depot staff check that same databaseAnyone buying a secondhand bike, and municipal fietsdepot staff processing recovered bikes, routinely search this register, which is how a recovered or resold stolen bike gets traced back to its owner.
Without the frame number on file through an actual police report, a recovered bike essentially has no way to be matched back to you, no matter how distinctive it looks.
Photo by Justus Hayes on Pexels
Before You Assume It’s Stolen: Check the Fietsdepot
Not every missing bike has actually been stolen. According to Bikebaze.nl, the city itself removes bikes that obstruct passages, create hazards, or appear to have sat unused in the same spot for two to four weeks, and holds them at a municipal depot rather than destroying them outright. If your bike disappears from somewhere you’d parked it a while ago, or somewhere with restricted or unclear parking rules, according to Gemeente Amsterdam’s own parking guidance, the city removal process is a real possibility worth ruling out before you assume theft.
You can search the fietsdepot’s own tool via Verlorenofgevonden.nl to check whether your bike has been picked up by the city. If it has, retrieval works by appointment, Monday through Friday, and there’s a collection fee, higher if you request delivery rather than picking it up yourself.
Prevention: What Actually Reduces Your Risk
According to advice repeatedly emphasized by lock manufacturers and the Fietsersbond (the Dutch national cyclists’ union), a few concrete habits meaningfully reduce theft risk, even if nothing eliminates it completely in a city with this volume of theft.
| Habit | Why it matters |
|---|---|
| Use two different lock types | A single lock type is faster for a thief who specializes in defeating it, a second, different lock adds real friction |
| Lock frame and wheel to a fixed object | Locking only the wheel, or not securing to anything fixed, leaves the rest of the bike easy to take |
| Park in visible, well-lit spots | Theft is opportunistic, visibility reduces the chance your bike is the easy target |
| Record your frame number now | You cannot retroactively add it after a theft, do this before you need it |
None of this is a guarantee. A Reddit thread from someone whose bike was stolen in Amsterdam reflects a common reality: even careful owners get targeted in a city with this much bike traffic and this much theft volume. The goal isn’t eliminating risk entirely, it’s making sure that if it happens anyway, you’ve already done the one thing (the frame number) that actually gives you a chance of recovery.
What Newcomers Get Wrong
The most common mistake isn’t a lack of caution about locks, it’s not knowing the frame number matters until after the bike is already gone. A close second is assuming a missing bike must mean theft and skipping the fietsdepot check entirely, when city removal for parking violations is common enough in Amsterdam to be worth ruling out first. Neither mistake reflects carelessness, they reflect not knowing this city’s particular system before you needed to.
What You’ll Need
- Your bike’s frame number, written down or photographed, ideally before anything goes wrong.
- DigiD if you want to file a police report online through politie.nl, or the police non-emergency number 0900-8844 for a phone appointment.
- The Verlorenofgevonden.nl search tool if your bike goes missing and you want to rule out city removal before assuming theft.
- Two different lock types if you’re setting up a new bike, according to standard Fietsersbond and lock-manufacturer guidance.
Compliance Note
This page explains general bicycle theft statistics, the reporting and registration process, and the fietsdepot system in Amsterdam, as published by Dutch police, the RDW, the Fietsersbond, and municipal sources, current as of 2026. It is not official police or legal guidance. Specific procedures, fees, and depot retention periods can change, confirm current details directly with the police or the Gemeente Amsterdam before relying on them.
FAQ & Common Pitfalls
Where do I actually find my frame number?
Usually on your proof of purchase from the bike shop, and also stamped physically onto the frame itself, commonly near the pedals or under the seat, according to guidance on filing a police report. Some bikes also have a separate chip number if they were registered with a chip system. Write both down and keep a photo of the stamped number on your phone, ideally before you ever need it.
What's the actual difference between reporting a theft and checking the fietsdepot?
They solve two different problems. Reporting a theft (aangifte) to the police, either via politie.nl with DigiD, by phone at 0900-8844, or in person, is what gets your bike listed in the national RDW fietsdiefstalregister, and it's necessary if someone actually took it. Checking the fietsdepot is for when your bike is simply missing from where you left it, since Amsterdam removes bikes it considers dangerously, illegally, or abandoned-looking parked, and holds them rather than destroying them.
Why would the city remove my bike if I didn't do anything wrong?
According to Bikebaze.nl, the city removes bikes that obstruct passages, create hazards, or appear to sit unused in the same spot for two to four weeks, which can catch out a bike you genuinely still use but happened to leave somewhere for an extended trip. It's worth checking the fietsdepot's search tool before filing a theft report if your bike vanishes from a spot where it had been sitting a while.
Does filing a police report actually help me get my bike back?
It's the only way your bike enters the national database at all. According to the RDW's own explanation, a bike only appears in the fietsdiefstalregister once its owner has filed an official police report with the frame or chip number, the registration happens automatically from that report, not from anything you do separately. Buyers of secondhand bikes, sellers, and municipal depot staff regularly check this same database, so being listed in it is genuinely how recovered or resold stolen bikes get traced back to you.
Is bike theft really that common, or is this exaggerated?
It's genuinely common, not exaggerated. According to Bikebaze.nl, Amsterdam sees more than 210 reported bicycle thefts per day, which works out to over 76,000 reported thefts a year, and that's despite the city's reputation as a global cycling capital. A Reddit thread from someone whose bike was stolen in Amsterdam reflects the same reality newcomers often encounter faster than they expect.