Method 1: Attempt combinations of commonly used numerical passwords.
Common bicycle combination locks typically use a three-digit numerical code, with each digit ranging from 0 to 9. The total number of possible combinations is 720. Trying each combination one by one is impractical, so it's recommended to try common numerical code combinations. If these fail, try the following methods.
Method 2: By listening for the sound
Slowly and carefully, turn the numbers and the tight wheel, and feel the force of each turn. There will be one that feels looser. Find the correct one, and also listen to the sound. The correct number will make a "Okay." sound. After finding the correct password, you can open the password lock.
Method 3: Open the lock cylinder and reset the password.
1、 Use a tool to cut open the end of the lock (without completely removing it). once cut, the lock's opening will be exposed.
2. After removing the shackle, the four digits on the bicycle lock are also scrambled. At this point, you simply need to reinstall the structure of the lock. The most difficult part is the U-shaped metal plate inside the lock's slot, which must be securely positioned on the lock pin and aligned with the lock pin's slot.
3. once all components are installed, you can begin setting the numbers. Use a flashlight to examine the lock hole and set the numbers one by one. There are four sets of numbers, and you should set them in groups until a row of grooves is completely recessed inside. When the lock can be inserted and locked, it indicates success. At this point, the corresponding numbers are the current password.
Method Four: Hire a locksmith
The simplest and safest method is to hire a professional locksmith, although this will incur a fee.