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  1. #1
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    My Fahgettaboudit chain was cut in 30 seconds

    No, the bike wasn't stolen. I just needed to take a link out of the chain to make it a little smaller so I could wear it around my waist. I wandered around my school looking for a proper tool and was eventually led to a nice old lady with an oxyacetylene torch (6000 degrees Fahrenheit). I was suprised at how quick she got through it although she did have sparks flying and had to wear a welder's mask.
    This makes me wonder if my lock is vulnerable around town to a torch, has anyone had a thief use a torch on their lock or heard of it happening? I'm probably safe around here though because my first bike didn't get stolen for 2 or 3 months when using just a cable, that's before I knew they were so easy to cut, I was misled at the bike shop.

  2. #2
    I drink your MILKSHAKE Raiyn's Avatar
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    Yeah I see guys hauling oxyacetylene tanks around every day. Don't be ridiculous

  3. #3
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    I'm just paranoid all the time, I do feel safer with my chain though.

  4. #4
    I drink your MILKSHAKE Raiyn's Avatar
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    Like I said I don't see people walking down the street with a welding helmet and a torch. Chances are THEY'D get jacked up before they got to my bike

  5. #5
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    Quote Originally Posted by KevinCCAD
    I'm just paranoid all the time, I do feel safer with my chain though.
    30 seconds is just about what the average bike theif would spend getting your bike. And if it takes 30 seconds with an oxymapp torch, I wouldn't worry about the standard thief with a hacksaw taking your bike. OTOH, if you park it in a back alley somewhere and the guy has a portable nitrous torch (I saw one in my mcmaster catalog that's almost pocket sized), then chances are, the chain's gone.

  6. #6
    Senior Member EnigManiac's Avatar
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    Guess the name of the lock is pretty accurate...except when they said Fahgettaboudit, they meant your bike.
    The slow down is accelerating

  7. #7
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    The NYPD use a circular saw type thing to hack those chains off in probably about the same amount of time. The saw shoots sparks out like 10 feet and is very loud. These methods aren't very stealthy and require lugging around some heavy gear. On the other hand if the lock was completely unbreakable then all it takes is some jack*** to come along and fill up the lock with something preventing your key from working. If the lock was completely invulnerable you would have no way to get your bike back...

  8. #8
    Senior Member Retro Grouch's Avatar
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    Every few years or so I read about some gang of thieves who find a way to burrow into a bank vault. If a motivated thief has the time and technology, he's going to get your bike. There is no 100% solution regardless of what the Kryptonite people might say.

    I think that the reality is even worse than that. Make it too hard to steal your nice bike and a frustrated bike thief will simply bash your top tube with his bolt cutter. If he can't get it he'll make sure that you can't enjoy using it either.

    Have a nice day.

  9. #9
    cycle-dog spot DinoShepherd's Avatar
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    Locks are just to keep honest people honest. There is nothing theft-proof.

    Oxy-Fuel, Battery-powered grinders, bolt-cutters, etc... all are common in use. And the reality is nobody is probably going to say jack to someone on the street working on a lock with whatever tools. "Oh this, I lost my key."

    I never leave I bike that I am not willing to lose and always try to leave them in plain sight.

    -Z

  10. #10
    hello roadfix's Avatar
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    My cordless grinder can do it in under 30 seconds...
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  11. #11
    The Red Lantern Rev.Chuck's Avatar
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    If it makes you feel any better I can pick a home door lock in less than ten seconds with a pick set I made from an old lawnmower recoil spring.
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    I am in the woods and I have gone crazy.

  12. #12
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    If you use a torch on my bike, you can have it, since it would probably be ruined anyway!

    I don't think the lock is abnormally compromised.

    Koffee

  13. #13
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    Quote Originally Posted by The Fixer
    My cordless grinder can do it in under 30 seconds...
    You must have a MUCH better power tools. than the editors of "Cycling Plus". They attacked that lock using a portable, battery operated power tool that is typical of what crooks on the street are actually using to steal bikes. The CP editors needed eight minutes with that power tool to open the Fahgettaboudit lock.

    Have you actually opened the 2005 version of the Fahgettaboudit with your cordless grinder?
    Last edited by alanbikehouston; 05-02-05 at 05:38 PM.

  14. #14
    The Red Lantern Rev.Chuck's Avatar
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    My corded Dewalt 4 1/2" angle grinder with a cutting blade on it would do it in under thirty seconds*

    * This is a guess, it will go through 5/16 hardened chain as fast as you want, truly like a hot knife through butter. Of course it is corded so you need to park your bike near an outlet.
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  15. #15
    Peddler Seamless's Avatar
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    Quote Originally Posted by lockdown
    The NYPD use a circular saw type thing to hack those chains off in probably about the same amount of time. ... These methods aren't very stealthy and require lugging around some heavy gear.
    Last year while walking I came upon several young guys (two on the street, one driver), working out of an unmarked panel van, in the end stage of removing a bike that had been locked at the front sidewalk of a condo building. They left the scene rather quickly. This occurred during bright daylight, in a residential/retail mixed neighborhood (Diversey/Clark/Broadway triangle). Using heavy equipment would make the whole operation more efficient.

    It didn't appear to be a repo outfit.
    `,`,`,`,`,`,`,`,`,`,`,`,`,`,`,`,
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  16. #16
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    Quote Originally Posted by Rev.Chuck
    My corded Dewalt 4 1/2" angle grinder with a cutting blade on it would do it in under thirty seconds*

    * This is a guess, it will go through 5/16 hardened chain as fast as you want, truly like a hot knife through butter. Of course it is corded so you need to park your bike near an outlet.
    "Cutting times" vary widely depending on the quality of the steel involved. Kryptonite uses very high quality steel for its New York lock and its Fahgettaboudit chain, compared with the "industry average".

    When "Cycling Plus" used a portable, battery powered cutting disk (the type used by actual street crooks...not the "heavy duty" equipment used for dismantling bridges) on some 13mm shackles, they were able to cut one in 22 seconds. Another took 76 seconds. Another took 149 seconds.

    The Kryptonite New York Lock, with a 16mm shackle took over five minutes per shackle. It was necessary to cut two shackles to open the lock, which took over ten minutes total. No crook is going to stand on a busy street corner with a noisy power tool, working for ten minutes on a Kryptonite, when the next bike on the rack can be opened in 22 seconds, or less. (One U-lock failed in five seconds...that is the bike a "smart" crook is going to target.)
    Last edited by alanbikehouston; 05-02-05 at 05:40 PM.

  17. #17
    The Red Lantern Rev.Chuck's Avatar
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    My angle grinder is very not stealthy. It throws sparks about ten feet. When I use it I go ahead and get the fire extenguisher off the hook. Mine is pretty tough and for cut work I use a blade intended for that kind of stuff. A lot of guys use the grinding heads(to cut) and they are slow, but these blades are for cutting pipe and sheet steel. It is really amazing how quick they go through stuff.
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  18. #18
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    Quote Originally Posted by Rev.Chuck
    My corded Dewalt 4 1/2" angle grinder with a cutting blade on it would do it in under thirty seconds*

    * This is a guess, it will go through 5/16 hardened chain as fast as you want, truly like a hot knife through butter. Of course it is corded so you need to park your bike near an outlet.
    Heh, don't park your bike next to a street lamp in NYC...

  19. #19
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    Quote Originally Posted by Rev.Chuck
    If it makes you feel any better I can pick a home door lock in less than ten seconds with a pick set I made from an old lawnmower recoil spring.
    With a good swift kick, I can get into the same home in less than a second.
    BTW, you can get a real good vibrator if you rip the head off one of those battery powered toothbrushes.

  20. #20
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    What about one of these with a carbide jaw?

  21. #21
    52-week commuter DCCommuter's Avatar
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    Quote Originally Posted by slvoid
    BTW, you can get a real good vibrator if you rip the head off one of those battery powered toothbrushes.
    Leave your personal life out of this.

  22. #22
    The Red Lantern Rev.Chuck's Avatar
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    What is that? A bionic cigar snipper?

    When I did my Emt training we played around with "the jaws of life" a little. And then when I was working at a equipment shop, I serviced a set and really put them to work. They might cut a shackle but I think it would stall them out, hard to say.
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    I am in the woods and I have gone crazy.

  23. #23
    Double Naught Spy TrekDen's Avatar
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    If a thief wants it, the thief gets it. If you think they are not brazen enough to work on a lock for ten minutes you are mistaken. Scenario: A van loaded with electrician tools. Parked on a lunch time (100's of people sitting at tables outside) crowded downtown Pittsburgh street. Return 20 minutes later to find van empty, while alarm was going off. Moral of the story: Most people just don't care, as long as it doesn't effect them. Guess what? Nobody saw anything either, out of convenience.

  24. #24
    Senior Member EnigManiac's Avatar
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    I saw a bike lock a few weeks ago that looked like a giant pair of hand-cuffs: strong and heavy looking and...freakin' expensive: $170.00 for the smaller and $210.00 Cdn for the larger. I don't recall the name, but they looked like they could deter even the most ardent of thieves. You'd need an SUV following you to carry it though.
    The slow down is accelerating

  25. #25
    2-Cyl, 1/2 HP @ 90 RPM slvoid's Avatar
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    Quote Originally Posted by DCCommuter
    Leave your personal life out of this.
    For the pins in the lock...

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