DUOBEISI Motorcycle Alarm Lock / Wheel Disc Brake / Motorbike Scooter Bicycle / Waterproof Anti-Theft / Aluminum Alloy Security Brake Lock – Vibration Alarm – Replaceable Battery – 0.215kg – Black
Secure your motorcycle, motorbike, scooter, or bicycle with the Krovor DUOBEISI Motorcycle Alarm Lock Wheel Disc Brake Motorbike Scooter Bicycle Waterproof Anti-Theft Aluminum Alloy Security Brake Lock. DUOBEISI vibration-triggered alarm disc brake lock with waterproof protection. Aluminum alloy construction. Replaceable battery. Mini wrench and 2 keys included. 0.215kg. Black. $20.
⚠️ Important Fitment Notice – Read Before Ordering
- This lock requires a disc brake – cannot be used on vehicles without disc brakes.
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Battery is replaceable (not rechargeable). See Battery Replacement section below.
- Available in Black only.
Key Features
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Vibration-Triggered Alarm: Built-in alarm activates on any vibration or movement to deter theft. Loud alarm sound warns off anyone attempting to move your vehicle.
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Aluminum Alloy Construction – Waterproof: Durable aluminum alloy disc brake lock with waterproof protection for reliable use in any weather condition.
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Simple One-Press Locking: Press the lock core to lock instantly and activate alarm mode.
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Replaceable Battery: Uses a replaceable battery (not rechargeable). Mini wrench included for battery replacement.
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Mini Wrench + 2 Keys Included: Package includes 1 disc brake lock (Black), 1 mini wrench, and 2 lock keys.
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Lightweight – 0.215kg: Compact and lightweight at 0.215kg for easy daily carry.
Alarm Usage Instructions
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Locking & Alarm Activation: Press the lock core to lock – you will hear “DU” sound. Alarm standby activates after 5 seconds. When the lock or vehicle is vibrated: 3 alarm sounds “DU DU DU”. Repeated vibration triggers alarm again after 5 seconds – continuous alarm with serial vibration. Each alarm lasts 10 seconds.
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Unlocking: 5-second unlock window for the owner. Use the key to unlock – alarm stops immediately. If the lock cannot be opened within 5 seconds, it will give an alarm.
Battery Replacement
When you hear continuous “Ge, Ge, Ge” sounds, or the alarm lasts less than 10 seconds then cuts off, the battery is low. Use the provided mini wrench to unscrew the four screws, remove the top cover, and replace the battery. Strictly observe the anode (+) and cathode (–) orientation.
Note: Keep this usage instruction and the mini wrench for future battery replacement.
Compatible Vehicles
- Motorcycles – wheel disc brake alarm lock
- Motorbikes / Scooters – waterproof anti-theft security lock
- Bicycles – aluminum alloy vibration alarm brake lock
What’s in the Box
- 1 × Disc Brake Lock (Black)
- 1 × Mini Wrench
- 2 × Lock Keys
Specifications
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Brand: DUOBEISI
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Compatible Vehicles: Motorcycle / Motorbike / Scooter / Bicycle (with disc brake)
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Product Type: Alarm Disc Brake Lock – Waterproof Anti-Theft Security Brake Lock
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Alarm: Vibration-triggered
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Battery: Replaceable (not rechargeable)
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Material: Aluminum Alloy
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Waterproof: Yes
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Color: Black
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Item Weight: 0.215kg
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Condition: 100% Brand New
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Origin: Mainland China









