If you are looking for the most secure bike lock for your bike or e-bike, you often only have the suppliers' security levels to guide you. However, these are neither standardised nor comprehensible. Stiftung Warentest offers more orientation. Our break-in tests in the laboratory show: You can actually rely on the locks with a high security level - but the best bike lock tested costs 300 euros, and...

The fairly lightweight Hiplok is very robust. Clever: The holder can be clicked into a plate that is attached to the frame eyelets. Another adapter makes it easy to swap from lock to bottle cage. Hiplok supplies three keys.