A friend of mine sent this link to me. (I/we have no affiliation with the maker or the kickstarter account.) I thought it looked kind of interesting...
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It only took that long because he is not using the grinder correctly. He should have been through the u-lock in less time but he us cutting with the wrong side of the disc and the rotation of the grinder is fighting the cut not helping to feed into the cut. Notice how much the grinder jumps and how often he has to restart the cut; proper tool use would prevent that and drastically reduce cut time. He is also using a lock with a small gauge 'U' on it, a larger lock would take longer. On the saw the increased time is due to tooling, the right blade, speed and feed can make a much faster cut in Ti than he is making; in all reality if he had cut slower the total time would have been less.
I also feel compelled to mention that his lock design only needs one arm of the lock to be cut and a u-lock with a design that needs both cut would double the cut time on the u-lock. At that point with proper tool use his lock is going to get cut in the same amount of time.
Fact: In the age of cordless angle grinders any bike lock is quickly deflatable so your best bet is to be just a little harder to get than the guy next to you.
Melanie said:
I didn't get that far into the video and missed the grinder portion the first time I watched. After viewing the video, it is still extremely vulnerable to grinder attack, although it takes a bit longer to cut through. Since I carry two U-locks anyway I could see the usefulness of this particular item depending on its price. Then I could dispense with one of the U-Locks I carry at least. Again, I think they state it best in their own description- "Moderate Threat" areas- so perfect for touring and low crime areas, but I doubt you would want this as your primary lock in the City.
Matt Munley said:
For those of you talking about a grinder attack, looks like they did make a video going after a U lock and one of their locks with a grinder. http://tigrlock.com/pages/2011/04/the-best-kind-of-boring/
+1
James BlackHeron said:
Where did you get it an how much was it?
I hadn't realized they were bringing these to market already. Did you get it at an LBS?
I supported the kickstarter campaign but you can now order them from the site, i think they have 2 sizes. It's so convenient to use, quick and really tough.
I have a friend with one and he LOVES it!
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