110dB Motorcycle Alarm Disc Lock & Reminder Cable

Why layered motorcycle security matters

This alarm disc lock combines two complementary functions: a mechanical barrier at the brake disc that is designed to restrict normal wheel rotation, and a movement-triggered audible warning intended to draw attention when the parked motorcycle is disturbed. In situational crime-prevention terms, the lock increases the effort required to move the vehicle while the alarm increases the perceived risk that interference will be noticed.

Peer-reviewed vehicle-security research has found that combinations of different security measures can provide stronger protection than relying on a single device alone. The UK College of Policing similarly explains that locks, immobilisers, alarms, and tracking devices are most effective as parts of a layered security strategy. This product should therefore be used as an additional parking-security layer—not as a guarantee against theft.

Research behind the design principles

Layered vehicle security: Farrell, G., Tseloni, A., and Tilley, N. studied how individual and combined vehicle-security devices contributed to reduced vehicle theft. Their findings support the broader principle that combinations of security measures can outperform single-device protection. Read the peer-reviewed study in the European Journal of Criminology.

Security-device combinations: The UK College of Policing evidence review notes that locks, mechanical and electronic immobilisers, alarms, and trackers can provide protection, while combinations generally perform better than single devices. Read the College of Policing evidence review.

Motorcycle secondary locking: Research published in the International Journal of Integrated Engineering examines the design of a motorcycle secondary electronic lock based on a conventional disc-lock mechanism, supporting the role of a disc lock as an additional security layer rather than a replacement for the motorcycle's original lock. Read the motorcycle lock design study.

Attention-getting audible signals: An experimental study in Applied Ergonomics evaluated audible warning signals for their ability to attract attention in the presence of background noise. The study supports the general attention-getting purpose of an audible warning, without claiming that an alarm alone prevents theft. Read the audible-warning study.

Alarm-noise safety: CDC/NIOSH guidance identifies repeated exposure to noise at or above 85 dBA as potentially hazardous. Do not activate or test the alarm close to your ears. Read the CDC/NIOSH guidance.

These independent sources explain the general principles of layered vehicle security, secondary locking, and audible warning signals. They do not test, certify, endorse, or guarantee this specific product.

Frequently Asked Questions

1. How does the alarm disc lock work?

The 6 mm locking pin fits through a compatible brake-disc opening to restrict normal wheel rotation. When the alarm mode is armed, unexpected movement or vibration can trigger an audible warning.

2. Will it fit every motorcycle or scooter?

No. Fit depends on the brake-disc opening, disc thickness, available clearance, and surrounding caliper and wheel hardware. Confirm that your brake disc accepts a 6 mm locking pin and has enough clearance before ordering.

3. Can this lock guarantee that my motorcycle will not be stolen?

No portable lock can guarantee theft prevention. Use this disc lock as an additional security layer. For longer stops or overnight parking, add a high-security chain secured to an immovable object and consider a cover or tracker.

4. How should I use and test the alarm safely?

Install the reminder cable so you remember to remove the lock before riding. Do not trigger or test the alarm close to your ears, and keep it away from children and pets during testing. Follow the supplied operating and battery instructions.