My new OnGuard bike lock to replace the compromised Kryptonite. The OnGuard lock is supposed to be better because it uses a rectangular or square key instead of a cylindrical key like they Kryptonite locks. You can still pick it, but not with a Bic pen! This picture also shows the cable I use to lock up the front wheel of my bike, so it's all double-locked. That won't prevent it from being stolen, but it should be a deterrent, and that's really the best a person can do.