How to keep your bike from being stolen

Step 9 Trying to make your bike unridable

Many people advocate vindictive anti-theft measures, such as loosening your front quick release, opening the brakes and derailing the chain, in an attempt to punish anyone who tried to ride off with their unlocked bike. These may cause pain and anguish, but they too are not an effective anti-theft measure, for them to work, someone has to have already stolen your bike. Furthermore, chances are just once you'll forget to tighten the quick release and you'll be the one needing dental work.

Fixed gear riders advocate fixed gear bicycles as a method of this, that they are somehow more secure because they are harder to ride. They are forgetting that due to the unbearable popularity of fixed gear bikes, they have become incredibly attractive targets for theft.