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  1. #1
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    remove old kryptonite u lock from bike

    Hey folks,
    I've managed to loose my lock keys, and my ex roommate lost the spare a long time ago. Now i'm stuck with a Kryptonite U shaped lock (the shorter one) strapped around the frame of my bike and no way of removing it. Being the idiot i am, i never registered my keys, so i cannot order a replacement from kryptonite. How would i go about removing this lock? is there any nifty tricks out there that actually work?
    I've read about this BIC pen idea, and the Liquid Nitrogen as well, but is there anything more realistic than these? or am i going to have to rent a heavy duty chop saw and waste a whole blade hacking through this thing?

    Thanks in advance!
    --Adrian
    www.downtempo.ca

  2. #2
    Senior Member dmac49's Avatar
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    Nitrogen will most likely require more than you can handle both in quantity and expense. You might try the Bic trick, however I think you might consider a saw. Another possibility is going down to the local fire station if you know someone, and getting them to saw it off. Good luck.
    The democracy will cease to exist when you take away from those who are willing to work and give to those who would not.
    Thomas Jefferson

  3. #3
    CRIKEY!!!!!!! Cyclaholic's Avatar
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    Try contacting the owner of the bike and asking them for the keys
    There are 10 types of people in the world - the ones that can count in base 2, the ones that can't count in base 2, and the ones that didn't expect this to be in base 3.

  4. #4
    I drink your MILKSHAKE Raiyn's Avatar
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    Quote Originally Posted by Cyclaholic View Post
    Try contacting the owner of the bike and asking them for the keys
    +1

    Of course, the true registered owner could order new keys from Kryptonite. What with their "Key Safe" registration program and all.

  5. #5
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    Yeah, i figured people would say stuff like that. But i do have my bike in my apartment. It's not like its locked to a post on the street or anything.

    Thanks for the tip about the fire station, I'll see what they say, unlikely though, in Vancouver there is so much bike theft that they would probably just call the cops.

    I was thinking of taking it to a bike shop, but is there really anything they can do other than just saw it off?

  6. #6
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    Also, does that bic trick work on new kryptonite locks? I bought this lock about 4.5 months ago.

  7. #7
    I drink your MILKSHAKE Raiyn's Avatar
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    Quote Originally Posted by lostmykeys View Post
    Also, does that bic trick work on new kryptonite locks? I bought this lock about 4.5 months ago.
    No round key = no BiC trick. Should have registered your keys like the nice paperwork said to.

  8. #8
    Conservative Hippie
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    Do it somewhere you won't burn a hole in the carpet. You will throw a lot of sparks.

  9. #9
    You need a new bike supcom's Avatar
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    A cutting torch should take about 10 seconds to do the job.

  10. #10
    Senior Member wahoonc's Avatar
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    Quote Originally Posted by CommuterRun View Post


    Do it somewhere you won't burn a hole in the carpet. You will throw a lot of sparks.
    Do they make a battery powered version?

    Aaron
    Webshots is bailing out, if you find any of my posts with corrupt picture files and want to see them corrected please let me know. :(

    ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.

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  11. #11
    I drink your MILKSHAKE Raiyn's Avatar
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    Quote Originally Posted by wahoonc View Post
    Do they make a battery powered version?

    Aaron
    Not funny

  12. #12
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  13. #13
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    Thanks guys, i'll check the hardware store on the way home and see if they'll rent me one.

    Cheers,
    Adrian

  14. #14
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    "A cutting torch should take about 10 seconds to do the job."
    +1.
    Ride your bike to a welding or sheet metal shop,
    ask them to burn it off with a torch.
    Probably cost $5.

  15. #15
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    has anyone ever tried a hydraulic jack? Like the kind used to lift up cars? If its just looped around, say, a top tube, you could probably fit a jack in there and break the lock pretty nicely.

  16. #16
    el sombrador loco MetalClydesdale's Avatar
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    Tricks I know that I have seen work

    1: Find a small car-jack (preferably from a VW bug) insert into the lock and increase pressure until the mechanism snaps.

    2: Get a hack saw.
    What you risk reveals what you value.

  17. #17
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    All you have to lose with the Bic trick is whatever those pens cost these days, 49 cents or so. If you have a Dremel tool, you could probably get through it with about $17 worth of cutoff wheels. And the other post is right about the firefighters. I used to be in a volunteer department, and people were always coming in with stuff like that. If you hit the right guy on the right day, somebody might pop it off for you. The Jaws of Life will slice through it or spread and break it, I'm sure, but that's an expensive piece of equipment and they might not want to bring it out for you.

  18. #18
    Hooligan Abneycat's Avatar
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    A stubby bottle jack will crack a Kryptonite NYC without a sweat. How short is "the shorter one", are you talking about something like an Evolution mini? You won't get a bottle jack into one of those, but if you're just talking about a standard size (as opposed to a longer, wider one), you can pop them easily like this.

  19. #19
    W A N T E D Juggler2's Avatar
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    I'm not sure of what type key the new lock uses, but if possible, I'd take it to a locksmith. Then you not only get to remove the lock, but you'll have a new key as well.

    Just sayin'.

  20. #20
    Change=inevitable. ?=+/- JosephPaul86's Avatar
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    even a scissor type car-jack will break these. I had to do this when some A-hole jammed some stuff in my lock cylinder which wouldn't allow me to unlock the bike. I just used the factory equipped one from my sister's corolla.


    EDIT: If you decide to do this, be careful. I would put a heavy mat or similar to keep broken bits from becoming flying debris.
    "And that's how the cookie crumbles."

  21. #21
    cat person GlassWolf's Avatar
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    If the bottle jack wont work, go take the frame to a local auto body shop that has a plasma torch, and they can cut the lock off in a matter of seconds. Just protect the frame very well around the lock, so the torch doesn't scorch or hit the frame or paint job. The shop should be able to mask it off for you to protect it with some cardboard and flat stock.
    GlassWolf
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  22. #22
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    Quote Originally Posted by Juggler2 View Post
    I'm not sure of what type key the new lock uses, but if possible, I'd take it to a locksmith. Then you not only get to remove the lock, but you'll have a new key as well.

    Just sayin'.
    Phoned a bunch of locksmiths, all said the same thing "we don't do bike lock keys, they're too complicated"

  23. #23
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    Quote Originally Posted by martianone View Post
    "A cutting torch should take about 10 seconds to do the job."
    +1.
    Ride your bike to a welding or sheet metal shop,
    ask them to burn it off with a torch.
    Probably cost $5.
    I think that this is the best idea so far, called a welding shop, and gonna bike down there as soon as i get a chance (stupid 9-5 job makes it hard to get to anything before it closes)

  24. #24
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    Ok, so i got my hands on a grinder. and this is my lock:
    http://www.kryptonitelock.com/Produc...=1000&pid=1100

    What would be the best place to cut through?

  25. #25
    Senior Member gregam's Avatar
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    Any place that you can.
    1st bike - 1962 Schwinn Varsity (bought new and wish I still had it, left it in Siagon, Viet Nam 1965)
    1962 Schwinn Varsity (could be a twin of my first bike)
    1969 Peugeot PX10E
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