How to buy a second-hand bike without getting stung

What people are frightened of when they buy a second-hand bike is not that the gears will need adjusting. It is handing over cash in a car park and finding out afterwards that the bike was never the seller’s to sell.

So this is the article I would want to read first. What to check, what the warning signs are, what happens if it does go wrong, and what you can actually do about it.

How do you buy a second-hand bike safely?

Five things, in order. Get the frame number and check it free on BikeRegister. Meet at the seller’s own address if you can. Look the bike over properly before any money moves. Pay by something other than cash if the seller will have it. And get a receipt with the seller’s name on it.

The rest of this is why each of those is on the list, and what the numbers actually say when you go and look them up.

How do you check if a second-hand bike is stolen?

You cannot know for certain, but there is one free check that takes a minute. Find the frame number stamped into the metal, type it into BikeChecker on the BikeRegister website, and see whether it has been reported stolen. BikeRegister is the national database the police use.

The hard part is finding the number, because most people have never looked for one and it is not usually anywhere obvious.

Where is the frame number on a bike?

Usually stamped underneath the bottom bracket, which is the part the pedals turn in. Tip the bike over and look up. If it is not there, try the head tube at the front above the forks, then the flat plate by the back wheel that the wheel bolts into.

1. 1Under the bottom bracket

   Where the pedals turn. Tip the bike over and look up. This is where most bikes carry it.

2. 2On the head tube

   The short upright tube at the front, above the forks. Often on the front or the side of it.

3. 3By the rear wheel

   On the dropout, the flat plate the back wheel bolts into, or underneath the chain stay.

That flat plate is called the dropout, and some bikes carry the number underneath the tube running forward from it instead.

It will be seven to ten characters stamped into the metal. Ask the seller to send you a photograph of it before you go anywhere, and do the check sitting at home. A seller with nothing to hide will not mind.

If the number has been filed off, ground away or painted over, that is the end of it. There is no innocent reason to remove the one thing that identifies a bike.

What does a clear BikeRegister check actually prove?

Less than it feels like. A clear result means one frame number is not flagged as stolen on one database. BikeRegister’s own wording is that it “won’t help if the original owner never registered their bike”, and most owners never have. A clear check is a good sign rather than proof.

Here is the scale of it. On the day I wrote this, BikeRegister’s own counter showed 1,579,984 bikes registered. The Crime Survey’s figures imply somewhere around eleven million bicycle-owning households in England and Wales alone, though that second number is worked out from their figures rather than one ONS publishes, so treat it loosely. Either way, registered bikes are a small minority of the bikes out there.

It is still worth doing, because it is free and it is the only free public check there is. Immobilise, the other national register people mention, cannot be searched by the public at all, and checkthatbike.co.uk, which several guides still link to, is gone: the domain now redirects to a car sales site.

What happens if a bike you bought turns out to be stolen?

This is the part most articles skip, and it is the part that matters.

You lose the bike. Under section 21 of the Sale of Goods Act 1979, someone who is not the owner cannot pass ownership to you, however honest you were and whatever you paid. The original owner is still the owner, and there is no exception for buying in good faith.

Lawyers call that rule nemo dat, which is short for a longer Latin phrase meaning nobody gives what they do not have. A thief never owned the bike, so there was never any ownership to hand on.

Is it illegal to buy a stolen bike by accident?

No, not if you did not know. Handling stolen goods under section 22 of the Theft Act 1968 requires that you were, in the words of the Act, “knowing or believing them to be stolen”. An innocent buyer has not committed it. Once you do suspect, though, keeping the bike or selling it on can be the offence.

That last sentence is why the advice is what it is. Citizens Advice says to ring the police on 101 or take the bike into a station as soon as you think it is stolen, and specifically not to hand it back to the seller yourself, because that can count as assisting in its disposal. The police will give you a crime reference number and a property log number.

Do you get your money back?

In principle, from the seller. If you bought from a business, the Consumer Rights Act 2015 says the trader must have had the right to supply the goods, and you can reject the bike for that. If you bought privately, the Sale of Goods Act still implies that the seller had a right to sell, so you can recover what you paid.

The right exists either way. Whether it is worth anything depends entirely on whether you can find the person, which is the whole reason the next two sections exist.

Do the police recover stolen bikes?

Rarely, and the figures are blunt about it. Of the 56,835 bicycle thefts recorded by police in England and Wales in the year to March 2026, 1,293 ended in a charge or a summons. That is 2.3%, or about one in forty-four. In 85% of cases the investigation closed without any suspect being identified.

Those are Home Office figures, added up from the force-by-force outcomes data. The total matches the number ONS publishes exactly, so it has been read right. For comparison, theft offences as a whole ran at a 9.1% charge rate in the same year, so bicycle theft is markedly worse than theft generally.

On getting the actual bike back, no UK body publishes a figure at all. I looked. The ONS tables on the nature of bicycle theft cover when it happened, where, what it was worth and whether the bike was locked, and say nothing about recovery. The “only 11% of stolen bikes are returned” line that circulates online traces back to a commercial blog rather than to any government source, so I am not going to repeat it as though it were real.

Locally, Devon and Cornwall Police recorded 701 bicycle thefts in the year to March 2026 and charged or summonsed 25 people. The North Devon and Torridge area, which is us, recorded 58, against 39 the year before. That sounds like a jump and I would not call it one: nineteen incidents on a base of thirty-nine is too small a number to read a trend into.

One more thing worth knowing about all of these. Only 38% of bicycle thefts in the Crime Survey were reported to the police at all, so recorded crime is a floor rather than a count.

How should you pay for a second-hand bike?

Cash is the normal way and the weakest, because there is nothing to reverse and no record you paid. A bank transfer gives you little more. If the seller will take PayPal goods and services, that is the strongest route in a private sale, because bicycles are expressly covered by it.

Six ways of paying for a second-hand bike, and what each one lets you do if the bike turns out to be stolen, faulty or not as described.

How you paid	What you can do if the bike is wrong
Cash, on collection	None at all. There is no record that you paid and nothing for anyone to reverse. This is how nearly every second-hand bike in the country is bought.
Bank transfer	Little, and less than people think. The reimbursement rules that came in on 7 October 2024 cover scams, and the regulator tells banks to separate a scam from a civil dispute. A bike you did receive, which turns out to be stolen or not as described, can be treated as the dispute.
PayPal, friends and family	None. Personal payments are named in the list of things PayPal does not protect. A seller who asks you to pay this way is asking you to give up your only cover.
PayPal, goods and services	The strongest option in a private sale. Bikes are expressly covered. "Item not received" does not apply to something you collect in person, but "significantly not as described" is not excluded that way, so it still applies. The seller pays a fee and may say no.
eBay, through eBay checkout	The Money Back Guarantee, for 30 days, and it does cover collecting in person. It does not cover classified ads, and it says nothing either way about stolen goods.
Credit card, over £100, from a business	Section 75 of the Consumer Credit Act, plus a chargeback through your card provider. Almost no private seller takes cards, so in practice this is a shop route.

Two of those rows are worth spelling out, because the usual advice gets them wrong.

Bank transfers are not as protected as people assume. Since October 2024, banks have had to reimburse most victims of this kind of fraud, and that is real. But the regulator’s own guidance tells banks to separate a scam from a civil dispute, and a civil dispute is roughly what it sounds like: you paid a genuine person, you got something, and you are unhappy with it. A bike that turns out to be stolen or not as described can land on that side of the line. Gumtree, which does not process payment on a bike at all, puts it plainly in its own help pages: once you have sent a transfer, “your money is not protected”.

PayPal is better than its reputation for collected items. Most guides say buyer protection does not apply if you collect in person. That is only half right. “Item not received” does not apply, obviously enough, because you have the thing in your hands. But “significantly not as described” carries no such exclusion, so it still applies to a bike you went and picked up. The catch is that the seller pays the fee, so plenty of private sellers will say no.

And if no platform processed your money, no platform can help you. A deal arranged in messages and settled in cash in a lay-by is just two people and some banknotes, whatever app the conversation happened in.

Where should you meet a seller?

There is no clean answer here, and the advice genuinely conflicts. Police forces treat a seller who will not meet at a home or work address as a warning sign, because an address is somewhere you can go back to. General marketplace safety advice says meet somewhere public. Those two protect you against different things.

One force’s published list of warning signs includes a seller who wants to meet on a street corner or outside a shop rather than at any address. Gumtree’s safety pages, meanwhile, say to meet in public, busy places. Both are right about the risk each is thinking of: one is about buying stolen goods, the other is about your own safety.

What I would do, and this is a judgement rather than a rule: go to the address, in daylight, and take somebody with you. If the seller will not give an address at all, that is information. If you cannot get to one, meet somewhere busy and accept that you have traded one risk for the other.

The one thing every source agrees on is the easiest to follow. Never buy a bike from somebody who approaches you in the street. Avon and Somerset Police put it as: only buy from someone you know and trust, ideally. If you are offered a bike that way, Crimestoppers takes anonymous reports on 0800 555 111.

What are the warning signs in a listing?

Collected from what police forces and BikeRegister actually publish, rather than from the internet’s general feeling about it:

• No receipt, and no idea where the bike came from
• A frame number filed off, ground away or painted over
• Stock photographs off the internet rather than photographs of the actual bike
• A price far below what that model goes for, with no explanation for it
• Pressure to decide quickly
• A seller who cannot or will not say why they are selling it
• A seller who will not meet at any address
• A repainted frame, or one that has obviously been altered
• Somebody who approaches you in the street or in a pub

None of these on its own proves anything. A grandmother selling a bike her grandson has outgrown will not have the receipt either. It is two or three of them together that should make you walk away, and walking away from a bike costs you nothing. There is always another bike.

What should you check on the bike itself?

Six things, and together they take about ten minutes: the wheels, the brakes, the chain and gears, the frame, the tyres, and whether it fits the person riding it. A cracked frame is the only one of those that cannot be put right, so that is the one to look hardest at.

I have written that part up properly on its own, because it is the half of this that applies to every bike whether anyone has ever stolen anything or not: what to check before buying a used bike.

Worth saying while we are here that a cheap bike is not a less safe bike. What makes a bike safe is whether the frame is sound, whether the brakes stop it and whether it fits, and none of those three things has much to do with the price. Are cheap second-hand bikes safe? goes through what the law actually requires on a bike.

Fit is the check people skip, and it is the one that matters most if you are buying for a child, because a bike bought to be grown into is the reason a lot of children come off. Measure the inside leg rather than going by age: what size bike does my child need?

Is it safer to buy from a business or a private seller?

From a business, legally, and it is the biggest single difference. The Consumer Rights Act 2015 applies to a trader, so the bike must be of satisfactory quality and the trader must have had the right to sell it. Buy privately and almost none of that applies. You get the right to a bike the seller owned, and little else.

There is a detail in that Act which almost nobody mentions and which is squarely about this article. The famous thirty-day window for rejecting something faulty is a time limit on the quality right. The right to reject goods the trader never had the right to sell carries no time limit at all in that section. If a bike you bought from a shop three years ago turns out to have been stolen, the refund right is still there.

A charity shop or a bike reuse project counts as a trader too, by the way. Charitable status does not change it. What it does change is what anyone can check, because a donated bike often arrives with no history attached to it.

Is there a better time of year to buy?

Nothing published says one month is better than another for buying. One thing is worth knowing though. Police recorded bicycle thefts in England and Wales peaked at 5,797 in July 2025 and bottomed out at 3,287 in February 2026. That is 76% more in the busiest month than the quietest, and the same shape repeats year on year.

What that means for a buyer is my reading rather than anything in the data: the months when the most bikes are being bought and ridden and sold on are also the months when the most are being stolen. So a bargain in July is the one worth checking hardest.

The short version

• Get the frame number and run it through BikeChecker. It is free, it takes a minute, and a seller who objects has told you something
• A clear check is a good sign, not proof. Under 1.6 million bikes are registered nationally and there are many millions out there
• A filed-off or painted-over frame number ends the conversation
• If the bike was stolen, you do not get to keep it, however honest you were
• You are not a criminal for buying it unknowingly, but you must hand it in once you suspect. Ring 101, and do not give it back to the seller
• 2.3% of recorded bicycle thefts end in a charge. Nobody publishes a recovery rate, because there is no official figure
• Cash gives you nothing to fall back on. PayPal goods and services is the strongest thing a private seller is likely to accept
• Buy from a business and the Consumer Rights Act applies, including a right to reject a bike the seller never owned, with no time limit on it

Most of this is about buying from a stranger, because that is what most people do, and the checks are worth knowing whoever you buy from. Including from us: look over one of ours exactly the way you would look over one from a stranger. Every bike we sell is cleaned, serviced and checked before it goes up, and because we are a business, everything in that last section applies to it.

And if you have a bike in the shed you are never going to ride again, we buy good second-hand bikes across North Devon and we collect. Here is how that works.