Security with pre-alarm. The Abus Granit Detecto XPlus 8077 2.0 brake disc lock sets standards in terms of quality, protection and convenience. An intelligent pre-alarm indicates movement on the lock and silences again in the event of a false alarm. If the lock continues to be attacked, an alarm sounds at least 100 dB loud. Thanks to 3D Position Detection, the Granit Detecto XPlus 8077 2.0 reliably recognises movements on the lock and first triggers the intelligent pre-alarm, which stops after seven beeps. Only then and in the event of further movement does the 100 dB full alarm sound for 15 seconds. In addition, the automatic brake disc detection system knows exactly when the lock is on the disc to secure the bike or not. This means that the Granit Detecto XPlus 8077 2.0 can be conveniently transported closed without triggering the alarm function. LEDs in different colours provide information about the activity and battery status at a glance. The hardened special steel from which the locking bolt, the housing and the load-bearing parts of the locking mechanism are made provides the necessary material strength. The built-in Abus XPlus cylinder has been specially optimised against manipulation, for example against picking attacks.