3x5 mm steel bolt The bolt, body and the structural parts of the locking mechanism are made of specially hardened steel Alarm function which emits a 100 dB noise for 15 seconds and then automatically re-arms itself 3D position detection – detects vibrations and the slightest movement in all three dimensions and triggers the alarm Acoustic and optical signal (LED, 3 colours) indicate battery status and active status Single-hand operation thanks to the patented “Snap'n Go” system – lock closes automatically when pressed on the brake disc ABUS Extra Classe cylinder with coded reversible key Two keys are included Automatic keyhole cover to protect against dirt and corrosion