Old Bicycle Lock

[ThE_MasteR]

Hey everyone,

I have an old, very old bicycle lock and I was told how to open one but I don't remember how. I am thinking that, to open it, I have to feel the sticking points on each of the 5 numbers and it'll open, but I can't seem to find any sticking point.

They look like this: (exept mine has 5 rotation numbers)

[Shrub]

Have a good search for 'sesame decoders' or even try the correct spelling

[ThE_MasteR]

There seems to be a way to do it without a sesamee decoder, someone just did it in front of me..

[digital_blue]

You can do these by feel very easily. Apply a good deal of pressure by pulling either side apart (as if trying to open it). Give each wheel a turn and feel for the one with the most resistance. Turn that wheel until you feel it loosen up. Whichever number gives you the least resistance is the correct number. Leave it there, and move on to the wheel which is now offering the most resistance. Repeat the process of finding the number on that wheel that feels "loosest". Continue until you've set all but one wheel. Then give the last wheel a complete rotation while still applying pressure. If you make it all the way around and the lock hasn't popped, one or more of your other wheels is incorrectly set. Go back and figure it out.

Once you have developed the feel for this (doesn't take long) you should be able to open many of these style locks in a matter of seconds. I've taught many neophytes to do this in just a few minutes. One note though, is that some locks have a defence against this attack. If that is the case, you will have to resort to the sesame decoder option.

Hope this was usefull.

db

[TOWCH]

I do it by finding the most binding wheel, testing a number, yanking on it, testing another number, yank again, and just keep doing that until I find the number that gives the most. then I move on to the next number. Once I have all but 2 figured out, I just cycle through every possible combo of those two while pulling on the cable. If I was right for the first numbers it should give, if not, I start playing around with those other numbers. With mine it was only 4 numbers so I could do this in around 2 minutes but a 5 number will probably take another minute or two.

[Shrub]

Of course you can do it that way, i was just too lazy to type it out

[ThE_MasteR]

I tried finding the sticking points and nothing happened. I know the first number which is 3, but I still need the 4 others. I think because this is a very old lock, this will be a challenge

[digital_blue]

Actually, it's important to note that you're not looking for "sticking points" like the Dudley kids do. You're actually looking for "giving points". In other words, the place where the drag seems to give on the wheel. Hope this clears it up.

db

[ThE_MasteR]

Actually, it's important to note that you're not looking for "sticking points" like the Dudley kids do. You're actually looking for "giving points". In other words, the place where the drag seems to give on the wheel. Hope this clears it up.

db

That's what I meant lol.

[GateTwelve]

*sigh, fond memory ensues* I remember these locks from the sixth grade (much cheaper variety, mind you). Set 'em all to zeros, and pull on one side of the cable. Rotate the first disk by one, and repeat. Stop when it stops "wobbling" when you pull on it, and move to the next disc. I must've taught twenty people how to do that. */sigh*

[cred]

has it got keys like the one above if so try picking it

[digital_blue]

I was kinda wondering about the keys in the picture. That lock looks to me like the master 4-wheel locks, but those don't have a key cylinder as well. I've never seen one of those with a key cylinder mind you.

db

[ThE_MasteR]

has it got keys like the one above if so try picking it

I wouldn't have posted this in the first place if there was one...

BTW, there are no zeros in mine

[digital_blue]

Well that changes everything!

Instead of starting at 0, start at 1.

db

[skold]

And im sure that if you cant crack it, you could try every possible code