I hang 4 bikes on the lower half of a loft in my garage. I don't have pics, but they hang by the wheel and the other wheel rests against the wall, so the bike is vertical. I would like to lock or secure the bikes so that it wouldn't be easy to take them in the event someone got into the house.
I have several studs running perpendicular & above the bikes, as well as the garage wall the bikes are leaning against.
I thought about using a bolted down loop (against the wall or stud) + a long security cable (on guard or kryptonite) through the bikes + a lock.