5 mm steel bars, with extra soft 2-components coating to prevent damage to the bicycle‘s paintwork The bars, the case, the links as well as supporting elements of the locking system are made of special hardened steel Alarm of at least 100 dB for 15 seconds Alarm function on basis of the ABUS 3D detection system that means, that every movement is detected Intelligent alarm – In case of small and short movement, e. g. the bike gets hit by a football, the lock only gives a short warning tone Different acoustic signals inform about battery, activation and alarm status Bars are linked with special rivets ABUS Plus cylinder for high protection against manipulations, e.g. picking