Xena Motorcycle Disc Locks combine two security systems in one solid product. All models protect your motorcycle, scooter, ATV or other disc-braked vehicle from theft.
Simply the world's finest disc lock design...

XENA disc locks combine the highest quality steel lock body and electronic components with a unique high security key and barrel.

...With a 120dB alarm built right in
Auto-arming and maintenance free, all XENA disc-lock alarms have a siren triggered by shock and motion sensors. The new XX Series alarms have been rated an amazing 120dB.