Is it a combination? If not you will probably have to pick it but don't fear I learnt how to pick locks by picking bike lock the pins seem more leanant and easier to move. If you don't have a pick or pressure wrench you can use house-hold items to your advantage.. Hope this helped
Aug 17, 2010 Rating
chain locks by: phantom44
i dont know about bar style locks, but the combination style ones are easy to open, especially the ones with 5 numbers, and blue plastic covering the chain... if you look carefully, you can see the gaps inside the wheels, and just turn each wheel till you see the larger gap... remember the number, repeat for the other 4...
Feb 19, 2008 Rating
tubular lock or pin tumbler? by: Anonymous
What kind of bike lock is it? Is the key circular or does is look like a normal house key? If it is circular, you have a tubular lock, if it looks like a normal key, it's a pin tumbler. Go to the appropriate page on this site to learn how to pick it. If it is a tubular lock though, picking it will be extremely difficult if you've never done it before, and you'll have to buy a $70 pick. Go to the make lock picks page to learn how to make your own if it is a pin tumbler lock, it will be much cheaper.