Are you looking for a suitable alarm brake disc lock? Come and take a look at our products. Our alarm brake disc lock has a movement and shock sensor function, which emits a 110 decibel alarm sound and can quickly attract the attention of passersby. Whether it's a motorcycle, bicycle, or anything else, as long as the thickness of its brake disc is less than 6mm, it's suitable for our lock. We can use a allen wrench to quickly replace the battery. The 59.1 inches long reminder cable not only deters thieves but also reminds us not to forget to unlock before starting.