Priority’s Set-Your-Own Combination Lock is perfect for securing your bike in safe, trusted areas (for our maximum-security lock, check out the Priority U-Lock). This lock is lightweight and doesn’t require a key, making it easy to transport and share with friends. Mounts to your seat tube, where it’s always handy when you need it. How to set your combination: To change the code on your lock, use default code 00000 to open the lock. Then twist the black metal ring on the end of the combination selector clockwise 1/4 turn. Select your individual code by aligning the numbers with the protrusions on the lock body, rotate the black metal ring 1/2 turn counter-clockwise to set and close your lock.