[canpan]

It's not great, but basically if your lock is better than the lock on the bicycle next to yours, they will most likely not steal yours..

[WhyNotHugo]

Your bike should always looks like a less interesting target [for theft] than the other bikes in the same rack.

[kombookcha]

You only need to be faster than the slowest gazelle in the pack, right?

[withinboredom]

Gazelle bikes are pretty fast ... instructions unclear.

[ozim]

Following Dutch jokes:

Well the lock itself for a junkie in Amsterdam has value if you get expensive one it is additional loot.