Bicycle lock test - bicycle locks - secure, inexpensive, good

81 models compete in the Stiftung Warentest bicycle lock test. Almost a third failed. Fortunately, there are also good locks for little money. The break-in tests in the laboratory show: Locks with a high security level can indeed be relied on - but the strongholds tested cost up to 200 euros and are often heavy. That doesn't have to be the case: Among the bike locks in the medium security classes for around 30 to 90 euros, there were break-in-proof models, including the current test winner from the 2023 bike lock test.