Often there's a pin-hole you push in with a pen or a needle and release it at the location of the new combination. You may have to know the old code in order to be allowed to set a new one.
There isn't really a way to unlock it if the combination was forgotten. You should always right down the combination the first thing you do, and hide it somewhere.
1. Open the lock. 2. Rotate the shackle 180 degrees so that it is parallel with the body of the lock -- just as though you were about to close it, but with the shackle facing the wrong way. 3. Push...
It depends on the design. Most often there is a small lever inside. You push that when the code is set correctly, and then turn the dials while holding the lever. When you let go, the new code is set.
I think most bike combination locks have a buttton , or something to press in so that you can set a new combination . I imagine for most it is on the "top side" of the cylindrical lock barrel (the...
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