Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

New bike lock

41 views
Skip to first unread message

somebody

unread,
Oct 21, 2016, 4:29:18 AM10/21/16
to
https://www.theguardian.com/lifeandstyle/2016/oct/21/bike-lock-developed-that-makes-thieves-immediately-vomit



A man approaches a bicycle, handheld electric saw at the ready. He
powers it on, starts to drill, and is shot in the face with a noxious
spray that makes him vomit uncontrollably. This is the dream of the
inventors of SkunkLock.

“Basically we were fed up with thefts,” said Daniel Idzkowski from San
Francisco, one of the inventors of SkunkLock. “The real last straw was
we had a friend park his very expensive electric bike outside a Whole
Foods, and then went to have lunch and chat. We went out and his bike
was gone.”

Idzkowski’s friend had used two locks, each $120, whose inability to
stop a thief outraged him. “I blurted out, ‘why didn’t it blow his
balls off?’”
Blame it on the bike: does cycling contribute to a city's
gentrification?
Read more

He eventually landed on a less violent and more legal innovation. “I
realized there really is no solution to this problem,” he said. “The
biggest problem in this industry is that people don’t know that the
lock that they bought for $20 is absolutely worthless. It costs at
least $100 to have at least somewhere close to where you can at least
curb the chances of a thief wanting to steal your bike.”

With the right tools, Idzkowski said, a thief could cut through most
locks in less than a minute. Thieves, he said, “talk in seconds: a
15-second bike, a 20-second bike, and it goes up to 30-60-second
bikes, with Kryptonite locks that require two cuts, each about 25
seconds”.

With his co-inventor, Yves Perrenoud, Idzkowski created a U-shaped
lock of carbon and steel with a hollow chamber to hold one of three
pressurized gases of their own concoction, including one called
“formula D_1”. When someone cuts about 30% of the way into the lock,
Idzkowski said, the gas erupts in the direction of the gash.

“It’s pretty much immediately vomit inducing, causes difficulty
breathing,” Idzkowski said. “A lot of similar symptoms to pepper
spray.”

The inventors have not yet tested the device on an actual would-be
thief, but have tested it on themselves and volunteers at distances of
two feet (60cm), five feet, 10ft and 20ft. “At two feet it was pretty
bad. It was absolutely vomit inducing in 99% of people. At five feet
it’s very noticeable and the initial reaction is to move away from it.
At 10ft it’s definitely detectable and very unpleasant.”

Bike thieves have had virtually free rein around San Francisco and the
Bay area for years, stealing thousands every year, turning warehouses
and underpasses into chop shops, victimizing residents and city
officials alike. Last year the thefts prompted a 20/20 news segment,
and city police estimated that eight in 10 bikes in a chop shop are
stolen. Anecdotal evidence supports the statistics: on Thursday, a
Mission resident told the Guardian that thieves had recently strolled
into his garage and cut three bikes from their locks on the wall.

Idzkowski said their chemical had passed compliance tests and was
legal, and that its variants were designed to be compliant according
to the varying rules of 50 states, major cities and EU nations.

He admitted the lock was not foolproof. It could be picked, for
instance – and many bike locks can be picked with something as simple
as a cheap plastic pen. Idzkowski argued, though, that the widespread
use of advanced disc-cylinder tumbler locks, including in the
SkunkLock, meant it might take even skilled lockpicks up to half an
hour of tinkering – long enough to draw attention.

A thief could also simply return to the spent lock, though Idzkowski
insisted this would not be easy, because the noxious spray clings to
skin and clothing.

“You’re basically just puking on yourself the entire time,” he said.
“They could change all their clothes, shower, if the bike is still
there come out and cut the remaining 75% of the lock. You can’t
prevent a theft 100%, so that’s why we call it a deterrent lock, not a
solution.

“All you have to do is be better than the bike across the street.”

Like many Bay area entrepreneurs, the SkunkLock creators are
crowdfunding for their future. Pledging $99 to their Indiegogo fund
promises a customer their own SkunkLock in June 2017, pending risk
assessment by their legal team.

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

Doug Landau

unread,
Oct 21, 2016, 2:47:19 PM10/21/16
to
Here we go again-

With all the acrimony that's been passed around about bikes vs. cars, I thought it would be a good time to talk about a really interesting ride....
It was a Friday. Fridays are usually good days because you have a lot of teenagers drinking and driving, plus a lot of people who are in a bad mood and in a hurry to get home from work. The factories usually pay on Friday, so you get a fair number of beer-commercial types cruising around in their 4X4s looking for some butt to kick while they're knocking back a few brews. A cyclist's paradise.

I stuck a full mag in my MAC-10 and put another one under the saddle. The gun fits into the water bottle cage pretty well, and it's fairy light. I stuffed a couple of grenades in my jersey pockets and slipped my Rambo-knife into its sheath on the front fork. Just for good measure, I grabbed a thermite grenade and dropped it into the remaining jersey pocket. This is a little more weight than I usually carry, but it was Friday night after all.

I caught the first one just a mile from home. It was a type-A, businessman-yuppie-semipsychotic in a BMW, who didn't like the fact that I was occupying two feet of the lane in front of him. He let me know with his horn and his middle finger. It's pretty hard to hit a moving car from a moving bike, even with a machine gun. I must have fired four bursts before I put one in the gas tank and the "Bimmer" erupted into flame. Fortunately, this bozo managed to get the car off on the shoulder before it blew up, so I didn't have to find a detour around the fire.

The next one didn't come along for another five or six miles. This was a couple of punks in an old Camaro. They pulled alongside me and the passenger barked out of the window like a dog. Then the driver floored it and screeched off in a cloud of burnt-oil smoke. I got lucky for once. The punks got caught at a stoplight, so I didn't need the gun. I pulled into the center of the road so I would pass the driver. As I rolled past, he started talking some punk talk. I don't know what he said, because he stopped in mid-sentence when he saw the grenade go through his open window into the back seat. I caught a glimpse of both of them frantically scrambling after it just as it went off. It looked like some of the glass and shrapnel did some damage to the car ahead of them, but it couldn't be helped. Every war claims some innocent victims.

I'd had enough of the city traffic, so I headed out into farm country. As I went past a barnyard, two enormous dobermans took off on an intercept course. I dropped them both with one burst, and put a couple of rounds through the farmhouse windows to remind the farmer about the leash laws in effect everywhere in the county.

A short time later, I heard the roar of knobby tires behind me. I looked back to see a huge Ford pickup truck, one of those jacked-up monstrosities with the undercarriage about three feet off the road. As it pulled closer, I heard loud country music blaring over the din of the tires. There were two men in the cab. They both wore Stetsons, and they were both drinking beer from cans. An archetypical redneckmobile.

I felt like just blasting them right then and there, but I waited to see what they had planned. Sometimes these guys just pass you without giving you a hard time. Not this pair, though. The guy in the passenger seat had a styrofoam cooler full of icy water, which he was preparing to dump out the window on yours truly. That was all I needed. As soon as the truck pulled even with me and the guy started to toss the water, I put a burst through the window. This brought trouble, though, because the cab was so high that I didn't get the driver. The truck continued down the road, and I tried to finish them off through the blood-spattered back window, but wouldn't you know it, the mag was empty.

I couldn't reload while I was rolling, and the driver of the pickup had by now stopped the truck and was turning around to come after me. I had, maybe, two seconds to make up my mind what to do. I reached into a jersey pocket and pulled out the other grenade. Then I did a time-trial turn, pulled the pin, and looked over my shoulder at the truck which was now speeding towards me. This would have to be timed just right. I let go of the handle and dropped the grenade, then sprinted for everything I was worth. I heard the blast and felt something graze my right arm. Turning around, I saw the truck in flames and out of control. It did a spectacular flip as it went into the ditch, then overturned. There was a second explosion as the gas tank went up.

I decided to cut my ride short, since my arm was bleeding. The wound was superficial, but it was nasty enough to cause a lot of discomfort. I thought back to the ammo I'd wasted on that turkey in the BMW, and regretted it. One of these days, I'd have to get some tracer bullets for the MAC to help me aim. Oh, well. I reloaded the gun since I was bound to come accross a few drunks & punks on the way home.

A few miles passed and I heard a siren behind me. I decided to play it cool, hoping they weren't after me. I was disappointed. The sheriff's car slowed behind me and I heard an amplified voice telling me to get off the bike and lie face down on the ground. Damn. I hated the thought of wasting a cop, but if they'd go out and do their jobs, I wouldn't have to ride around doing my part to rid the area of its rat population. But I had an idea. I still had a thermite grenade. I yanked it out of my pocket and tossed it on the hood of the patrol car. I'd hoped for the element of surprise and got it; the two deputies inside the car were too startled to shoot at me. The grenade went off and started burning its way through the engine compartment. The deputies managed to stop the car, and by the time they got out, I was a good quarter mile down the road. I heard shots behind me, but they'd never hit me at this range with .38 Smith & Wessons.

My escape was short-lived, though. I saw two more sheriff's cars up ahead with riflemen crouched behind them. I heard more sirens from behind. This was it. I pulled out the MAC and fired wildly at the roadblock, crouching to make a smaller target. If I had to go, I was going to take some of them with me. It had been a good life. I'd had some good times. I just regretted that they were getting the wrong guy. I felt something hot tug at my shoulder. I reached up, expecting to pull my hand away bloody, and found my office-mate's hand instead. "Bob..Bob!.. Wake up! You fell asleep at your desk! C'mon, it's Friday afternoon. Time to go home!"

I went home, firmly resolved never to eat that cafeteria chili again.

russell...@yahoo.com

unread,
Oct 21, 2016, 4:56:51 PM10/21/16
to
On Friday, October 21, 2016 at 1:47:19 PM UTC-5, Doug Landau wrote:
> Here we go again-
>
>I must have fired four bursts before I put one in the gas tank and the "Bimmer" erupted into flame. Fortunately, this bozo managed to get the car off on the shoulder before it blew up, so I didn't have to find a detour around the fire.
>

http://www.discovery.com/tv-shows/mythbusters/mythbusters-database/shooting-gas-tank/

https://www.quora.com/Does-shooting-at-the-fuel-tank-of-a-car-lead-to-the-car-exploding

http://skeptics.stackexchange.com/questions/2343/can-you-make-an-explosion-by-shooting-at-fuel-or-fuel-tank

Despite what you see on TV, car gas tanks don't blow up when struck by bullets. And they don't blow up when cars crash. For TV purposes the exploding car is great for special effects.

Jeff Liebermann

unread,
Oct 21, 2016, 8:31:44 PM10/21/16
to
On Fri, 21 Oct 2016 04:30:23 -0400, somebody <som...@somewhere.com>
wrote:
>https://www.theguardian.com/lifeandstyle/2016/oct/21/bike-lock-developed-that-makes-thieves-immediately-vomit

I like the idea, but it's far too complexicated and messy. Charging
the bike lock with a load of puke gas runs a high risk of accidentally
gassing oneself. Leaving some residue on the lock is also a potential
hazard. Leaving the lock in the hot sun also doesn't seem very safe.
Of course, there are laws against boobie-traps in many states:
<https://www.reddit.com/r/AskReddit/comments/lq1w4/is_it_illegal_to_booby_trap_your_house/>

Instead, I suggest decorating a U-lock to look like a stick of
dynamite.
<http://inertproducts.com/dynamite>
<http://www.eod-gear.com/inert-training-dynamite/>
Some printed paper wrapped around the straight part of the lock should
suffice. Now, would you grind or saw your way through what might be
enough explosive to vaporize you, the lock, the bike, the bike rack,
and most of the neighborhood? I don't think so.


--
Jeff Liebermann je...@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558

W. Wesley Groleau

unread,
Oct 21, 2016, 9:07:44 PM10/21/16
to
On 10-21-2016 15:56, russell...@yahoo.com wrote:
> Despite what you see on TV, car gas tanks don't blow up
> when struck by bullets. And they don't blow up when cars crash.
> For TV purposes the exploding car is great for special effects.

And dream purposes, real or imaginary.

--
Wes Groleau

Sir Ridesalot

unread,
Oct 21, 2016, 9:46:10 PM10/21/16
to
On Friday, October 21, 2016 at 8:31:44 PM UTC-4, Jeff Liebermann wrote:
Snipped> Instead, I suggest decorating a U-lock to look like a stick of
> dynamite.
> <http://inertproducts.com/dynamite>
> <http://www.eod-gear.com/inert-training-dynamite/>
> Some printed paper wrapped around the straight part of the lock should
> suffice. Now, would you grind or saw your way through what might be
> enough explosive to vaporize you, the lock, the bike, the bike rack,
> and most of the neighborhood? I don't think so.
>
>
> --
> Jeff Liebermann je...@cruzio.com
> 150 Felker St #D http://www.LearnByDestroying.com
> Santa Cruz CA 95060 http://802.11junk.com
> Skype: JeffLiebermann AE6KS 831-336-2558

Yep. Then you come back to your bike and find that it's been blown to pieces by Homeland Security because someone reported it looked like a bomb. our bike is still gone.

Cheers

John B.

unread,
Oct 21, 2016, 9:49:31 PM10/21/16
to
On Fri, 21 Oct 2016 17:31:36 -0700, Jeff Liebermann <je...@cruzio.com>
wrote:

>On Fri, 21 Oct 2016 04:30:23 -0400, somebody <som...@somewhere.com>
>wrote:
>>https://www.theguardian.com/lifeandstyle/2016/oct/21/bike-lock-developed-that-makes-thieves-immediately-vomit
>
>I like the idea, but it's far too complexicated and messy. Charging
>the bike lock with a load of puke gas runs a high risk of accidentally
>gassing oneself. Leaving some residue on the lock is also a potential
>hazard. Leaving the lock in the hot sun also doesn't seem very safe.
>Of course, there are laws against boobie-traps in many states:
><https://www.reddit.com/r/AskReddit/comments/lq1w4/is_it_illegal_to_booby_trap_your_house/>
>
>Instead, I suggest decorating a U-lock to look like a stick of
>dynamite.
><http://inertproducts.com/dynamite>
><http://www.eod-gear.com/inert-training-dynamite/>
>Some printed paper wrapped around the straight part of the lock should
>suffice. Now, would you grind or saw your way through what might be
>enough explosive to vaporize you, the lock, the bike, the bike rack,
>and most of the neighborhood? I don't think so.

Years ago there was a court case in one of the northern states - Maybe
Minnesota or Michigan - where to prevent continued vandalism of an
untenanted house the owner placed a "set gun" in the front room. He
put a sign on the door "Warning Set Gun". Some scoundrel kicked the
door in and the set gun worked as advertised. Shot him in the leg. He
sued the owner for loss of his leg and collected.

I don't think in the U.S. protection of one's property is a valid
reason for installing "explosive devices" :-)

But maybe, since as described here, killing someone on a bicycle is
only a $150 fine perhaps blowing a hand off is only a misdemeanor
now-a-days.
--
cheers,

John B.

DATAKOLL MARINE RESEARCH

unread,
Oct 22, 2016, 9:09:48 AM10/22/16
to
avast the jib

...


HEADLINE TOPEKA

A 7 year old girl touched C. Lavinsky's bicycle this morning at Utah and Clack. Lavinsky's bicycle covered the girl with poison gas from Lavinsky's bicycle lock.

The girl, Mirna Dolum, ran away into the path of the Utah Express bus.

Mirna was DOA.

Charges are pending

Doc O'Leary

unread,
Oct 22, 2016, 12:02:29 PM10/22/16
to
For your reference, records indicate that
Jeff Liebermann <je...@cruzio.com> wrote:

> Instead, I suggest decorating a U-lock to look like a stick of
> dynamite.
> <http://inertproducts.com/dynamite>
> <http://www.eod-gear.com/inert-training-dynamite/>
> Some printed paper wrapped around the straight part of the lock should
> suffice. Now, would you grind or saw your way through what might be
> enough explosive to vaporize you, the lock, the bike, the bike rack,
> and most of the neighborhood? I don't think so.

Odds of you fooling a bike thief: low. Odds of you catching a load
of grief due to clueless idiots reporting a bomb to law enforcement:
medium. Odds of a bike thief doing that on purpose just to get a
chuckle out of your stupid choice: high.

--
"Also . . . I can kill you with my brain."
River Tam, Trash, Firefly


Mike A Schwab

unread,
Oct 23, 2016, 8:04:58 PM10/23/16
to
http://www.mlive.com/news/kalamazoo/index.ssf/2012/07/sticker_promoting_punk_band_th.html

A sticker for the band "This bike is a pipe bomb" got a guy brought up on charges.

Jeff Liebermann

unread,
Oct 23, 2016, 10:12:07 PM10/23/16
to
On Sun, 23 Oct 2016 17:04:56 -0700 (PDT), Mike A Schwab
<mike.a...@gmail.com> wrote:

>On Friday, October 21, 2016 at 8:46:10 PM UTC-5, Sir Ridesalot wrote:
>> On Friday, October 21, 2016 at 8:31:44 PM UTC-4, Jeff Liebermann wrote:
>> Snipped> Instead, I suggest decorating a U-lock to look like a stick of
>> > dynamite.
>> > <http://inertproducts.com/dynamite>
>> > <http://www.eod-gear.com/inert-training-dynamite/>
>> > Some printed paper wrapped around the straight part of the lock should
>> > suffice. Now, would you grind or saw your way through what might be
>> > enough explosive to vaporize you, the lock, the bike, the bike rack,
>> > and most of the neighborhood? I don't think so.

>> Yep. Then you come back to your bike and find that it's been blown to
>> pieces by Homeland Security because someone reported it looked like a bomb.
>> our bike is still gone.

I just hate it when I get taken seriously. I posted the dynamite idea
to suggest that it doesn't matter if it's barf gas, explosives, or
confetti, it's still a bomb. Sorry, but I guess I should have been
more obvious and less sarcastic.

>http://www.mlive.com/news/kalamazoo/index.ssf/2012/07/sticker_promoting_punk_band_th.html
>A sticker for the band "This bike is a pipe bomb" got a guy brought up on charges.

He was found guilty as charged, but still didn't bother removing the
sticker:
<http://www.mlive.com/news/kalamazoo/index.ssf/2012/08/3_days_after_conviction_kalama.html>
It's difficult to tell from the small photo, but the sticker and
bicycle looks very new, as if had been applied just before his Occupy
Kalamazoo protest. Claiming that
"he forgot the sticker was even on the bike"
doesn't seem very compelling.

John B.

unread,
Oct 23, 2016, 11:40:06 PM10/23/16
to
On Sun, 23 Oct 2016 19:12:06 -0700, Jeff Liebermann <je...@cruzio.com>
wrote:

>On Sun, 23 Oct 2016 17:04:56 -0700 (PDT), Mike A Schwab
><mike.a...@gmail.com> wrote:
>
>>On Friday, October 21, 2016 at 8:46:10 PM UTC-5, Sir Ridesalot wrote:
>>> On Friday, October 21, 2016 at 8:31:44 PM UTC-4, Jeff Liebermann wrote:
>>> Snipped> Instead, I suggest decorating a U-lock to look like a stick of
>>> > dynamite.
>>> > <http://inertproducts.com/dynamite>
>>> > <http://www.eod-gear.com/inert-training-dynamite/>
>>> > Some printed paper wrapped around the straight part of the lock should
>>> > suffice. Now, would you grind or saw your way through what might be
>>> > enough explosive to vaporize you, the lock, the bike, the bike rack,
>>> > and most of the neighborhood? I don't think so.
>
>>> Yep. Then you come back to your bike and find that it's been blown to
>>> pieces by Homeland Security because someone reported it looked like a bomb.
>>> our bike is still gone.
>
>I just hate it when I get taken seriously. I posted the dynamite idea
>to suggest that it doesn't matter if it's barf gas, explosives, or
>confetti, it's still a bomb. Sorry, but I guess I should have been
>more obvious and less sarcastic.
>

After having one 125cc motorcycle stolen from under a Thai house
(built on stilts) I thought seriously about connecting the new one to
the electrical power system and driving a ground post near the bike.
Connect the power leg to the bike and the neutral to the ground post.

(Note: in Northern Thailand in those days that would be perfectly
legal. In fact shooting thieves was legal :-)

Than the lightening bolt of reality struck. Got up late. Swig a cupa.
Late to work. In a hurry. Down the steps grab the bike. WHAP!

So I never did it. But I still think it was a pretty good idea :-)

>>http://www.mlive.com/news/kalamazoo/index.ssf/2012/07/sticker_promoting_punk_band_th.html
>>A sticker for the band "This bike is a pipe bomb" got a guy brought up on charges.
>
>He was found guilty as charged, but still didn't bother removing the
>sticker:
><http://www.mlive.com/news/kalamazoo/index.ssf/2012/08/3_days_after_conviction_kalama.html>
>It's difficult to tell from the small photo, but the sticker and
>bicycle looks very new, as if had been applied just before his Occupy
>Kalamazoo protest. Claiming that
> "he forgot the sticker was even on the bike"
>doesn't seem very compelling.
--
cheers,

John B.

cycl...@gmail.com

unread,
Oct 24, 2016, 1:41:01 PM10/24/16
to
> Like many Bay area entrepreneurs, the SkunkLock creators are
> crowdfunding for their future. Pledging $99 to their Indiegogo fund
> promises a customer their own SkunkLock in June 2017, pending risk
> assessment by their legal team.

There are simply too many difficulties with this sort of booby trap. And this is probably illegal since it could effect passers-by who normally ignore the sounds of a grinder cutting through the hardest locks we have.

In the extremely unlikely event of a person being caught trying to steal a bike the cops and courts do almost nothing. You can look at Craigslist and see that people that are selling bikes don't know a single thing about the bikes they are selling. They don't even know the size. And the manufacturers don't help anything by not putting serial numbers on them.

W. Wesley Groleau

unread,
Oct 24, 2016, 7:28:41 PM10/24/16
to
On 10-24-2016 12:41, cycl...@gmail.com wrote:
> And the manufacturers don't help anything by not putting serial numbers on them.

I don't remember owning a bike without a serial number.

not that it matters—95% or better won't know their serial number when
their bike is stolen.

--
Wes Groleau

Sir Ridesalot

unread,
Oct 24, 2016, 11:01:10 PM10/24/16
to
My MIELE Equipe Pro Columbus SL with full Dura Ace did not have a serial number. I had another bicycle with the serial registered with the police department but when that bicycle was stolen I discovered upon reporting it to the police that
the police had lost the file.

Keep your serial number in a place where you can find it if you ever need it.

Cheers

cycl...@gmail.com

unread,
Oct 25, 2016, 1:01:08 PM10/25/16
to
Many steel and aluminum top grade bikes do not have a serial number because they are built by small separate builders that the company they are built for (such as Eddy Merckx) don't want to screw up the paint jobs punching numbers into the BB shell.

Carbon bikes are usually only serial numbered with a separate plate and many companies do not do that.
0 new messages