This AXA Defender ring lock with battery lock is perfect for cyclists who want to secure their battery and make it easy to remove. The lock is suitable for pannier rack batteries with batteries from the Shimano STEPS system. With the key to the ring lock, you can not only lock your bike but also remove the battery. This means you don't need a separate key for the battery. This lock offers reliable security for your bike and gives you peace of mind. Product specifications - Suitable for pannier rack batteries with batteries from the Shimano STEPS system - AXA Defender ring lock with battery lock - Easy battery removal with the same key - Reliable security for your bike - Peace of mind while cycling