I had no trouble opening the ABUS Titalium Aluminum Alloy Padlock and it fit over every chain I tested it on. Made of an alloy steel shackle with nano-protect coating, this lock survived all our destructive tests and still opened just as easily as the first time I tried to open it. The lock itself is a six-pin cylinder, which makes it harder for the average person to pick. It’s much lighter than our winner, but reviewers warned that the lock can be shimmed if someone desperately wanted to get in.
