Questions tagged [theft]

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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 ...
Nathan Knutson's user avatar
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 (<...
Kevin's user avatar
  • 2,892
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, ...
einpoklum's user avatar
  • 819
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. :-(
Jason Kleban's user avatar
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 ...
Dan Rosenstark's user avatar
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 ...
Dorian's user avatar
  • 383
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" ...
BuildNC's user avatar
  • 357
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 ...
alsothings's user avatar
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 ...
R.B.'s user avatar
  • 203
17 votes
5 answers
12k views

How can I protect components from being stolen off my bike?

I had my bike locked up properly so that the frame and wheels were secure, but somebody stole the 8 speed and handlebars off of my bike. I don't understand how this can have more than a $10 resale ...
Bozostein's user avatar
  • 363
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 ...
John Doucette's user avatar
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 ...
Baumr's user avatar
  • 1,585
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 ...
Maxime's user avatar
  • 263
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 ...
Marcus Saye's user avatar
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 ...
Jason's user avatar
  • 809
16 votes
2 answers
2k views

Cut U-Lock....Bicycle Left?

Is this a common thing, and if so, what is the motivation behind it? When I went to unlock my bicycle this morning, when I touched the U-Lock, it basically fell apart. It looks like someone used a ...
Rob P.'s user avatar
  • 1,283
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’ ...
TylerDurden's user avatar
14 votes
4 answers
14k views

Do certain makes/models/types of bikes get stolen more than others?

I was reading this article on the most commonly stolen cars, and having my bike stolen recently, I got to thinking: do certain makes/models/types of bikes get stolen more than others? My bike was a 15 ...
Trevor's user avatar
  • 636
13 votes
5 answers
785 views

Lock for extremely frequent use

Are there lock products out there specifically designed for easy handling when locked unlocked dozens of times a day? I'm using a normal, chain-based lock at the moment and I'm annoyed because I'm ...
Pekka's user avatar
  • 231
13 votes
1 answer
856 views

Usage experience with anti-theft GPS trackers

Does anybody have any actual experience with anti-theft GPS trackers like BikeSpy? Their website looks terribly unprofessional and there are only very few testimonies online, but the idea is ...
DudeOnRock's user avatar
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.
user46852's user avatar
  • 129
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 ...
Yujin Kim's user avatar
  • 129
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 ...
Pacman's user avatar
  • 213
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, ...
Felix's user avatar
  • 763
10 votes
3 answers
2k views

Are bicycle registration websites any use for recovering stolen bikes?

Ther are quite a few bicycle registration websites aimed to help you recover your bike if it is stolen, such as Bike Shepherd, Bike Register and MyBikeNumber. I'm curious if these sites are of any use....
Hugo's user avatar
  • 1,359
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 ...
sam's user avatar
  • 759
8 votes
2 answers
4k views

Are public bicycle rack providers liable if your bicycle is stolen from their rack?

My bicycle was insured and locked to a leisure centre provided bicycle rack while I was in the leisure centre and was stolen by the time I came out. I was later informed that someone else had their ...
PhilJ's user avatar
  • 433
8 votes
1 answer
587 views

Experience with GPS trackers - thieves' reactions?

I'm interested in experiences what happens in reality when a bike with a GPS tracker is targeted / stolen by thieves. There are GPS trackers with a SIM card that will send an alarm to your mobile ...
Stephan Matthiesen's user avatar
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 ...
Snowball's user avatar
  • 313
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 ...
Lightsout's user avatar
  • 1,737
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 ...
leftaroundabout's user avatar
7 votes
1 answer
463 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, ...
begs-the-hessian's user avatar
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?
Tom77's user avatar
  • 7,895
7 votes
2 answers
2k views

Are any anti-theft GPS trackers dynamo powered?

I am considering an anti-theft GPS tracker for my bicycle, but I am worried about battery life. Are there any that recharge from a hub dynamo?
gerrit's user avatar
  • 3,867
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 ...
Tom's user avatar
  • 163
6 votes
4 answers
700 views

Are there electronic/active theft deterrents for bicycles?

In addition to mechanical/passive deterrents (locks, chains, etc.), what electronic/active bicycle theft deterrents exist? * My dear bicycle was stolen two weeks ago and I then vowed to dedicate my ...
Saar Drimer's user avatar
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 ...
philipnye's user avatar
  • 193
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)...
nolawi's user avatar
  • 1,290
5 votes
6 answers
3k views

How to handle an attempted bike theft [closed]

TLDR; I chased down a bike thief and caught her. Turns out she's a juvenile. She claims she mistook the bike for her own. The police say if we press charges, nothing will likely come of it because it'...
Stephen Touset's user avatar
5 votes
4 answers
784 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 ...
nolawi's user avatar
  • 1,290
5 votes
3 answers
430 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 ...
bzink88's user avatar
  • 67
5 votes
3 answers
881 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....
Anas's user avatar
  • 247
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 ...
MaryS's user avatar
  • 51
5 votes
5 answers
557 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 ...
Ben Poulter's user avatar
  • 1,116
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.
RoboKaren's user avatar
  • 29.2k
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 ...
Mellissa's user avatar
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 ...
user avatar
4 votes
2 answers
2k views

Removing bike interfaces to reduce likelyhood of theft?

Is there a product out there that allows you to remove interfacing components? Like being able to remove your brake lever arm, shifter arms, pedals...etc etc easily and efficiently so it makes the get ...
user2066639's user avatar
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 ...
Leo's user avatar
  • 31
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 ...
pjshap's user avatar
  • 33