Questions tagged [theft]

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28 votes
7 answers
12k views

Evidence on "Uglify Your Bike: Effective Theft Deterrent?"

Does anyone have any evidence that uglyfying does or does not work as a theft deterrent? It doesn't have to be scientific: even anecdotal evidence helps (and maybe well-founded opinions)? This ...
7 votes
4 answers
5k views

Chain lock vs U lock harder to break?

I watched a video from youtube where lockpicking lawyer recommended a Kryptonite chain lock due to being harder to break into with an angle grinder because it's not stable versus an U-lock. Does this ...
15 votes
4 answers
5k views

Tracking my bike - How could a company offer a GPS location tracker with no recurrent service fee?

I want to add a tracker to my bicycle. I’ve come across this and am wondering if it’s too good to be true? If not, how does it work, and why is this the only example I can find? What are folks’ ...
2 votes
2 answers
566 views

Tile for theft recovery

Has anyone used Tile as a theft recover device for one of their bicycles? I live in a metro area with a relatively high crime rate, and I am looking for some extra piece of mind while I have my bike ...
5 votes
4 answers
787 views

How did my stolen carbon frame bike get from D.C. to Guatamala?

My bike was stolen from the downtown DC on nov 11 2017. It was locked and was stolen in the middle of the day. I had put a bluetooth device, more specifically Tile in the seat post of the bike. I ...
3 votes
2 answers
385 views

Hybrid bike stolen, trying to weigh factors for how to replace

I had my 2006 Trek 3700 stolen from my apartment today. I reported it to the police and should be getting at least a small amount of money from renter's insurance. It was locked with a Kryptonite ...
2 votes
2 answers
2k views

Please suggest a Hitch Bike Rack Theft Protection Solution

Recently I purchased hitch bike rack. This is my second bike rack. My first one was stolen when I left it installed on my car, parked on the street. The one which got stolen was a THULE bike rack. The ...
5 votes
2 answers
3k views

Are black bikes really stolen more than other colors?

Is there any evidence that thieves prefer one color of bike than others? I'm not asking for opinion but for a citable reference.
4 votes
3 answers
4k views

Bike lock for a Mountain bike with easily removable wheels

I have a Trek 3500 that I need to lock up when I ride city trails, but I have been nervous as both of the wheels are incredibly easy to remove (flip a switch, rotate a lever a few times and they ...
3 votes
5 answers
2k views

Whole Bicycle Rack Easily Removed! Is the provider liable?

The story is - Parked and locked the bicycle at a seemingly secure parking-rack provided by a supermarket. I soon discovered that someone had locked my bicycle (and their own) to the rack. Returning a ...
7 votes
1 answer
435 views

What course of action is most prudent to prevent/delay a bike theft?

I've just witnessed a bike theft, and in hindsight I handled it very badly. (What exactly happened: I met a friend on the street, we were talking, then he noticed a pair of *ahem* gentlemen ...
21 votes
7 answers
15k views

Protecting bike attachments such as lights against theft

I was wondering what one could do to keep his bike attachments from being stolen. On Monday two lights were stolen off of my bike. I only had them for a day. It was the kind that has a rubber "strap" ...
7 votes
6 answers
2k views

Removing neodymium magnet ball from socket cap screw

I placed neodymium magnet balls ("buckyballs") in the head of some of the screws on my bike as an anti-theft measure, as I've had components stolen off my bike before. Most of them could ...
0 votes
2 answers
128 views

How expensive of a bike can be safely locked outside [closed]

How much would a bike cost at most that can be reasonably left outside before it's too much risk of theft? Areas like grocery stores parks gyms etc. I think a $500 bike can be safely locked ...
2 votes
1 answer
109 views

Anti-theft axle nut covers?

Been looking high and low for a 15mm diameter axle nut cover. Like a rounded-out protective cover that uses hex or torx keys to remove in order to discourage wheel theft. I'm finding plenty of options ...
28 votes
4 answers
12k views

Someone else's lock on my bike

Earlier today, I had to leave my bike in the street to run some errands. Just after I was done attaching it to a barrier, a person came to me and asked me about my kryptonite lock as he was locking ...
3 votes
2 answers
1k views

What kind of cutting wheels cut hardened U-lock shackles best?

I have a question which might be asked by honest people wanting to protect their bike from thieves, but unfortunately can also be asked by bike thieves. I hope this won't be downvoted, my intentions ...
5 votes
3 answers
883 views

Help please - I am suspicious this bike might be stolen

I recently got this Btwin Triban 3 bike from a person I definitely trust. He said they have had it for a couple of years but don't use it anymore and originally got it from a family member a while ago....
7 votes
1 answer
416 views

electronic security tags

Are electronic security tags (e.g. Immobitag, Datatag) a good idea? Are the stickers likely to deter theft and does the electronic tag increase the chances of recovery in the event of theft?
1 vote
4 answers
364 views

"Lock" brakes so that they are always active

I have mechanical disc-brakes on my mountain bike. I am wondering whether it is possible to have the brakes activated without me pressing the levers.
56 votes
6 answers
7k views

How do you operate a used bike business without contributing to theft?

Businesses that sell used bikes and/or parts clearly have value for communities and the environment. They are a way of reducing waste and reallocating gear that still has useful life, they are a ...
16 votes
5 answers
3k views

Found my stolen bike, what to do? (London, UK) [closed]

About a year ago my old bike was stolen by cutting through the fence that I had locked it too (I didn't realize that the fence was thinner than the lock itself) and now I've come across it once again ...
1 vote
3 answers
485 views

Bicycle locks with alarm

I have a new bike, not very expensive... but still doesnt want it to disappear the next day and I was looking at different locks and came across lock that have an alarm which triggers a siren. Not ...
6 votes
1 answer
8k views

Help identifying frame number

On my new bike I can see two numbers stamped into the frame - one seven digits long and one eight digits long. There's also a serial number on a tag. I'm attempting to register the Bike with the UK ...
17 votes
1 answer
2k views

Where do stolen bikes go?

I'm looking for, ideally, an academic study or authoritative source on what happens to stolen bikes, rather than just speculation. Is there anything I can do at this point to help track mine down? My ...
11 votes
2 answers
11k views

What should you do if you find a bike that appears to be stolen?

What should you do if you find a bike that appears to be stolen? Should you turn it in or just leave it alone? Occasionally I'll see a bike that appears to be abandoned, which I assume to be stolen ...
12 votes
5 answers
7k views

How can I prevent theft of mirrors?

I want to know to permanently fix back view mirrors. Last night, somebody stole them. Please tell me any solution.
11 votes
6 answers
4k views

Warranty on lock damaged during attempted theft

Someone attempted to steal my girlfriend's bike tonight and they damaged the lock. Do you guys know if we can use the warranty to get it exchanged? The lock has a 2 year warranty and I'm planning to ...
7 votes
1 answer
467 views

Does Abus print blind bitting codes on their D-Lock bikes (or do thieves go through the trouble to

I've got several YourPlus Abus locks (all keyed the same) so that I can have one key for basically all the family bikes. The other day I noticed that one of my D-Locks had a plastic part missing, ...
1 vote
3 answers
547 views

Stolen chain/pedals: What might be the motive? [closed]

My pedals disappeared. Several months ago, my chain disappeared in the same location. On both occasions, the bike frame was locked, but the totally unsecured quick release wheels and other ...
40 votes
14 answers
12k views

My bike got stolen a second time (in Amsterdam) - what should I do? [duplicate]

I've moved to Amsterdam a few months ago, and have started using bicycles; I mostly cycle from home to work. I've been using typical old(ish) used bikes, black-color omafiets of some obscure make, ...
0 votes
1 answer
456 views

Why would someone steal my rear derailleur and hanger? [closed]

Yesterday while I was at work someone stole the rear derailleur and hanger off my bike. Everything else left alone. Why would someone steal a derailleur? Seriously. Of all the parts.
51 votes
9 answers
8k views

Best type of bike lock (materials, style, etc.)

I recently lost the keys to my lock and had to borrow a bolt cutter to free my bike. It was a bit of an eye opener to realise a) just how easy it was for the bolt cutters to cut through my D Lock (<...
16 votes
7 answers
3k views

How can I prevent my next bike from being stolen?

I park my bike in my building's bicycle room, in the parking garage in the basement. The garage door can only be opened with a remote fob, and the bicycle room is locked as well. In the garage, I ...
20 votes
13 answers
13k views

Safest way to store bike outside (city)

I bike commute and just moved to a tiny third floor walk up. I was willing to give up some of my precious space to store the bike, but it turns out that the narrowness and curvature of the stairs ...
1 vote
2 answers
677 views

Why would anyone steal a bike computer off of a bike?

Lights can be re-used easily, but a bike computer... they would need to setup their own rigging for the wires and the magnets, that alone would cost them money and time, and who's going to buy from ...
16 votes
6 answers
6k views

Does the National Bike Registry work?

The National Bike Registry is an nationwide registry of bikes with identifying information (serial numbers, make/model, owner information) in the US that is intended to help identify stolen or ...
5 votes
4 answers
14k views

Preventing my trunk-mounted bike rack from being stolen

I am new to all this - got a bike as a retirement present and bought a Saris Bones 2 bike rack. It seems to me as it is just clip on it could be stolen while I am happily off riding my bike - is this ...
10 votes
3 answers
10k views

Where are stolen bikes sold?

I live in a city on the east coast. I recently had my bike stolen. The frame was locked to a bike rack using a u-lock. They either picked or cut the u-lock. My simple question is: where do thieves ...
17 votes
2 answers
10k views

Can a chain-lock be better against cutting than a U-lock?

I'm looking for a bike lock and, in 2013, Kryptonite have a new lock, the Evolution Series 4 Mini Chain: The chain is quoted as being only 55 cm long, and 10 mm thick. Is the blue mark below a ...
36 votes
13 answers
7k views

Theft deterrents (in addition to locking up a bike)

Besides locking a bike up properly, are there other deterrents against theft (such as engraving) that make a bicycle less attractive to a potential bike thief? UPDATE It was stolen. :-(
6 votes
2 answers
2k views

What do you do if you find your stolen bike's frame on ebay?

I am 85% certain that I see my bike's frame on eBay. It costs almost 2k with all the components and I see the frame on sale for $400 with seat-post and fork only. All my stickers not in the pictures(3)...
5 votes
5 answers
562 views

Is a name sticker with my name enough to prove a bike is mine if it gets stolen?

Apart from the fact that stickers can be removed (as thats not the point of my question) would if my bike got stolen and i found it, would a sticker with my name on the frame be enough to prove that ...
6 votes
2 answers
19k views

Is frame number the same thing as serial number?

I'm registering my bike with Kryptonite anti-theft scheme and it asks for the serial number. My local dealer wrote down the frame number for me, saying I might need this for insurance purposes. Are ...
21 votes
6 answers
7k views

Deterrents against partial (component) theft

Big question: Is there any way to increase the security of bolted on portions of a bicycle? Specifics: I cycle as my primary mode of transport (in East London) on a early 90s steel road bike with ...
5 votes
3 answers
431 views

Conceptual: Bike Lights built into Grips

I am a design student and avid cyclist and am currently working on a design project for school. I had an idea for locking handlebar grips that have LED lights built into them. If you can picture MTB ...
1 vote
0 answers
165 views

Insurance that covers the original price of the bike [closed]

I'm a new cyclist and new to this forum; hi! I forgot to mention I live in the UK. I am going to get a cyclocross bike from Evans for just less than £1000 and accessories. I'm mostly concerned about ...
4 votes
2 answers
2k views

Would an original Abloy padlock and [toughened] chain make a good bike lock?

Why are bike locks so fancy, so specialised? Would a small padlock, e.g. original Abloy make a good bike lock when connected to a chain? http://simple.wikipedia.org/wiki/Abloy (first image) Are ...
0 votes
0 answers
118 views

Storing a nice bike outside cheaply in the city during winter (weather/security) [duplicate]

I'm no longer able to store bicycles in my flat, as my current place is less than 20m² in size; Is there any way to store a bicycle outside in a way which will significantly minimize weather- and ...
10 votes
4 answers
2k views

Why (and how) would someone steal only my innertube?

Upon my return from winter holidays, I found that someone had stolen the rear innertube from my locked bike. They took only the innertube: the rear wheel was still there, the chain correctly attached, ...