If you want my bike, you better come prepared. I use a Kryptonite mini U-lock with a heavy duty Kryptonite chain and an Abus Bordo Granit X-Plus 6500 folding lock. That's what you need to get through after gaining entrance to a locked parking garage with security cameras and a roving security guard, and a locked fenced bike cage. It's easy if you have the garage access card and 3 keys, but quite difficult and somewhat risky otherwise. Good luck. BTW, I'm not telling where the bike is located, so you'll also need that crucial piece of information.