High Security The world's lightest, most portable disc-lock alarm. XZZ6 series disc-lock alarms come in five painted colour finishes: black (shown here), yellow, blue, red and orange & black. The stylish and portable XZZ packs a lot of security in a small package, weighing in at just 418 grams and featuring a 6mm steel locking pin. The XZZ offers the broadest fit of any XENA lock, fitting virtually any two-wheeler with a brake disc (including bicycles!). Features include a pushdown locking mechanism and 110 dB alarm linked to shock and motion sensors. If disturbed or attacked, the alarm sounds for 10-15 seconds before re-setting itself to armed mode.