Locks That Cannot Be Cut with Bolt Cutters
Cutting through the shackle to remove the lock requires an exposed shackle for the bolt cutters to reach. Many bolt-cutter-resistant locks have a less exposed shackle to make this more difficult. The thief can't get the blades of the bolt cutter to the shackle quickly and easily, so he might move on. This isn't as easy to find on bike locks since you need a long U shape to fit around the bike and the item to which you're securing it. If you're looking for a padlock, choose one with a short or shrouded shackle.
