Onvian Motorcycle Disc Brake Lock with 110dB Alarm — Black, Rechargeable Waterproof, 5ft Reminder Cable

Onvian's disc brake lock combines a sturdy aluminum-alloy lock body with a motion-activated 110dB alarm and a 5ft bright reminder cable to deter theft and prevent accidental rides with the lock attached.

If you park a motorcycle, scooter, e-bike or bicycle with a disc rotor thicker than 6.7mm, this lock offers a visible physical barrier plus an audible alarm to discourage tampering. The unit is built from aluminum alloy for resistance to brute force, includes a loud sensor that triggers on vibration, and arrives with two unique circle keys, a storage bag and a removable orange cable that reminds you to remove the lock before riding.

How loud and responsive is the alarm if someone touches my bike?

The lock uses a sensitive motion detector that triggers a high-decibel siren when vibration or movement is detected. The alarm reaches up to about 110dB, loud enough to draw attention and startle a would-be thief, then it stops after a brief interval or when you disarm it with the key.

• 110dB peak alarm volume to attract attention
• Motion-activated sensor for light taps and stronger impacts
• Automatic stop or manual key disarm for quick reset

Will this lock fit my motorcycle or scooter disc rotor?

The Onvian disc lock is designed for brake rotors with a thickness greater than 6.7mm (0.26 in). It’s suitable for many motorcycles, scooters, dirt bikes, e-bikes and bicycles that have compatible disc brake dimensions. Always measure your rotor hole and clearance before purchase to ensure a proper fit.

• Recommended for rotor thickness > 6.7mm (0.26 in)
• Works with motorcycles, scooters, e-bikes, dirt bikes and bicycles
• Compact shape fits many common disc configurations

How durable and weatherproof is the lock for outdoor use?

The casing and keys are crafted from aluminum alloy to resist impact and reduce the chance of forced entry. The alarm housing is designed with waterproofing in mind so it keeps functioning in rain and wet conditions; however, like all electronics, avoid prolonged submersion.

• Aluminum-alloy body and keys for greater impact resistance
• Waterproof alarm housing protects electronics in wet weather
• Includes a storage bag to protect the unit when stowed

What accessories come with the lock and how do they help daily use?

The package includes practical extras that make the lock easier and safer to use. A bright 5ft orange reminder cable helps prevent accidental rides with the lock still on; two unique circle keys and an L-shaped key offer secure access, and a storage bag keeps the alarm protected when not attached to the disc.

• 5ft orange reminder cable to prevent riding with the lock on
• Two unique circle keys plus an L-shaped key for secure unlocking
• Storage bag and instruction manual included for convenience

Who is this for: Riders who want a compact yet audible anti-theft solution for parking in urban areas, shared lots or at home will benefit most. It suits owners of motorcycles, scooters, e-bikes and bicycles with compatible disc brakes who prefer a lightweight, weather-resistant lock with an attention-grabbing alarm and a visible reminder to remove the device before riding.