APPROVED ALARM DISC LOCK: Heavy duty powerful alarm disc lock 120 dB approved Classe SRA, this security disc brake lock has passed all the resistance tests. Kraser is quality engeneering: worth the peace of mind. HIGH SECURITY: Motorcycle antitheft disc lock made of stainless steel. Approved high security 10/10 with the certification Classe SRA. Tested against crowbar, saw, shears, mallet, drill, picking, hammer, etc. in independent laboratories. PROTECTION: Double locking system for the motorcycle alarm disc lock is a high-strength ø10mm/0.39" locking shaft that blocks in 2 spots for maximum security with anti-saw security. Place the disc lock shaft in big holes of the brake disc. High security keylock with rotating discs anti-picking and anti-drilling protection. 3 secure keys, reminder cable, CR2 battery and allen wrench included. OPTIONAL ALARM: Dual function, alarm activated pushing the lock down twice when locking it to activate the powerful 120dB alarm. Motion sensors detect attacks: 3 beeps sound first, the alarm is activated during 15 seconds and goes back to alert mode. CR2 long-lasting battery and replaceable alarm module. Completely waterproof 100% inox steel disc lock. TRUSTED BRAND Nº1 IN GERMANY: KRASER brand means quality engineering, passion for theft prevention and qualified advice given by an experienced manufacturer of high quality locks to protect your car with the best anti-theft solutions. APPROVED ALARM DISC LOCK: Heavy duty powerful alarm disc lock 120 dB approved Classe SRA, this security disc brake lock has passed all the resistance tests. Kraser is quality engeneering: worth the peace of mind. HIGH SECURITY: Motorcycle antitheft disc lock made of stainless steel. Tested against crowbar, saw, shears, mallet, drill, picking, hammer, etc. in independent laboratories. Approved high security 10/10 with the certification Classe SRA. PROTECTION: Double locking system for the motorcycle alarm disc lock is a high-strength 10mm locking shaft that blocks in 2 spots for maximum security with anti-saw security. Place the disc lock shaft in big holes of the brake disc. High security keylock with rotating discs anti-picking and anti-drilling protection. 3 secure keys, reminder cable, CR2 battery and allen wrench included. OPTIONAL ALARM: Dual function, alarm activated pushing the lock down twice when locking it to activate the powerful 120dB alarm. Motion sensors detect attacks: 3 beeps sound first, the alarm is activated during 15 seconds and goes back to alert mode. CR2 long-lasting battery and replaceable alarm module. Completely waterproof 100% inox steel disc lock.