No chance for thieves – Stiftung Warentest chooses the safest bicycle locks. You shouldn't skimp on the bike lock because if the bike is gone, it will be significantly more expensive.
The most important thing: A lock should be so robust and durable that it cannot be picked with bolt cutters, saws and other types of tools. An expensive bicycle lock for well over 100 euros performed best - but one of the best locks can be had for under 50 euros. Below you will find the best-rated models sorted by overall grade.