The Xena Disc Alarm Has been Designed witha shock Sensor in the body which causes and alarm to be emitted if anyone attempts to move the bike while the lock is in place. Features: 110db alarm auto-arm/ dis-arm Double-locking system 14mm...[more]

the micro alarm represents an upgrade in technology over the standard alarm. It uses a shock sensor and incorporates a 10 degree tilt sensor. Features a 7mm pin instead of the large 14mm pin.  this allows it to lock through the vent holes in the brake surface. once it is...[more]