Double-locking 10mm pin with piercing 120dB alarm.
 
The world's best disc lock. 
High nickel-content stainless-steel mono-block body, broad fit profile and best-in-class 10mm double-locking, carbide-reinforced hardened-steel locking pin. Freeze-spray proof, pick-resistant.
Smart-arming 120dB alarm built right in.
Shock & motion sensors trigger a piercing 120dB alarm. A single CR2 long-life Lithium battery lasts up to a year. Self-arming, no on-off switch, re-sets to armed mode in 15 seconds. Removable alarm module for easy service/battery changes.
 
Resources: Download the XX Series User Manual from www.XENASecurity.com. For a short video showing how the XX10 works on the brake disc, click here. To read more about the unique features of this XENA disc-lock alarm, click on the icons below.