Xena Xx-14 Disc Lock with Alarm Xena Xx-14 Disc Lock is a double-locking barrel system. Constructed from hardened steel and stainless steel body. Features a Smart LED arming sensor for motion and shock. Features: Design with a flared, attack-resistant body shape Straps to your brake-disc like a well-fitted glove High nickel-content stainless-steel mono-block construction and piercing alarm Shorter, squatter body gives it a sport and streetbike-oriented fit profile 14mm double-locking, carbide-reinforced hardened-steel locking pin 7mm gap height and 85mm long 44mm gap length between pin and body for disc Shock and motion sensors linked to a sophisticated microprocessor trigger a 110 dB alarm Self-arming, with no on-off switch, re-sets automatically to armed mode within 15 seconds if the attack stops Alarm module with CR2 battery Xx-14 Stainless Steel