If we really want to end bike theft, we need a legal approach. A serial number engraved into frames and all major bike parts. An easy to use web site to check provenance of parts by serial number. Hefty (10yrs+) jail time for anyone possessing, selling, modifying or trying to cross a border with stolen parts. Hell, cryptographically signed RFID tags required for all new bike frames. Hefty penalties for even riding a non conforming frame. That would get the message across real quick.
Basically, get serious about bike theft the way we are about car theft and the crime will be practically eradicated.
Looking at the statistics, I see that in my country (Australia) there is a less than 1% chance of your car being stolen in any recent year. That seems to be pretty low, a nuisance yes but not all that bad. And that's even though cars are much more valuable than bikes - and very few people use any sort of aftermarket lock with their car.
I would say the law has dealt pretty effectively with car theft and I see no reason it could not be adapted to include bikes, too.
Also, I remember seeing a 60 minutes (or some show) on south american cities where a high percentage of the cars on the road were stolen from the US.
I'm an avid cyclist, but I wouldn't touch this lock.
Here's what I would use:
And sure, this one is lighter, but stopping my bike being stolen is far more important to me than how much it weighs.
The goal of locking your bike is to ensure bits don't go missing. However, what you're really trying to do is protect your investment. Locks stop bits going missing, but they don't protect the investment. My bicycle was locked overnight at Bristol Temple Meads train station (which I wrongly assumed was a secure-ish location). The thieves didn't manage to break the lock, so instead they just vandalized the bike so that I couldn't use it either. I sort of wish the lock had just given way, at least that way the bike might have provided some value to someone, somewhere.
Anything less than encasing the whole bike + lock + secure post in a steel case (like a bike locker) won't ensure that your bike will stay in tact.
Reusable joining link? No tools required. As to the point of doing it, well, I had the QR skewers stolen off my bike once. Stealing a chain makes at least as much sense.
They have a Pitlock solution, but it works for everything from Saddle down to chain rings. With 1 key doing the whole bike.
Not a whole lot you can do about a very motivated thief.
Most chains (even the big looking ones) can be cracked in under a minute: http://www.youtube.com/watch?v=VC3hFr8p2ck
Perhaps they'd honed a technique for cutting down parking meters quickly? I also wouldn't rule out the thieves being stupid.
I can just see a thief looking at the vespa, the chain, the parking meter and thinking 'It's a crime anyways, may as well get the 15$ in change'.
Light but tough locks are worthless, they're just going to make your bike get thrashed. You want a lock that says "don't even bother trying".
Bingo. For around town, your best bet is a an old, anonymous looking city bike. Faded paint and maybe even a bit if rust can be plusses. No gearing is a plus too (I don't mean fixed gear bikes though). Many of the fancy locks listed in the guy's comment above cost more than my town bike itself.
I lock my (very expensive) bikes out on the street fairly often, though never overnight. I only ever use 1 lock and a component protection system.
I use the Kryptonite New York Fahgettaboudit it secure the frame to some fixed street object of equal strength (newish iron railings are good, otherwise some London lamp-posts will fill this lock so perfectly that there's no leftover space for a leverage tool).
I pair that with Pitlock to protect the wheels, though will be moving to Atomic 22 when that system is fully released.
And my saddle is secured by a chain that goes through the rails and chain stays.
Anyway, it's a cool idea, but I have to agree I wouldn't trust it without some evidence of its abilities to withstand modern bike thieves with power tools.
I have a different strategy for locking my bike: it has no lock. Rather, it is foldable and has a built-in "shower cap" cover. I fold it, cover it, and take it inside. This strategy has worked for me even in Washington DC (where I live) -- I once had to figure out how to get it into the NSF -- and in Rome, where I lived for six months and commuted each day.
Get a 4 foot piece of 1" pipe and slip it over the lock end of that bow. One hand close the the lock and the other pushing on the opposite end.
35 pounds (an accepted average human push/pull force) x 6 (mechanical advantage of a 4 foot pipe) = 210 lbs of force. The website lists the thickness of the titanium (which is what would matter here) as 40mm.
New materials are giving us great opportunities to re-think old problems, which is why I regularly enjoy browsing http://www.inventables.com/
Carbon fiber, for example, may be considered to be almost as strong as steel, but it breaks pretty easily when subjected to shear and shock forces, i.e. a bolt cutter.
Quickly skimming the article, graphene is only twice as strong as steel in this regard. Although this is still great, you have to be careful.
The TiGr is our titanium lock system, it’s secure,
versatile, elegant, light, easy to use and easy to
store. A really secure bike lock that’s actually sexy.
So none of these locks stand a chance if it's a pro-thief, you are only stopping the amateurs.
I am not really concerned with professionals though because it is a simple matter of sending them to prison for a long enough time - say 30 years - so that the cost outweighs the benefit. That is something the politicians should look into, as they all want to be hard on crime.
The danger is those who steal a bike because they need to get home because they are drunk or those who just deface them. Tougher sentences will not prevent them, because they don't consider all the ramifications in the first place.
Maybe rigging the bike to give an electric jolt if they take it? Not enough to be damaging, but enough to make them stay away?
So then you pay the deductable on your renters/homeowners insurance and get a new bike. Hardly a crisis in the one in a million chance that a professional bike thief wants your bike.
"Testing in our workshop demonstrates that the 1.25” titanium bow survives a 48” bolt cutter attack and that sawing is extremely difficult and time consuming due to the ‘springy’ nature of the titanium bow at a third the weight of a common U-lock."
They know that lock doesn't stand up to a sawzall, so they aren't marketing it based on the security, because it will quicky be proven insecure.