Updated: 16 Feb 2025

bike lock with alarms

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Updated: 16 Feb 2025

#1

Best Choice
Blackstone Anti-Theft 130 db Alarm U-Lock Heavy Duty w/Security Cable (Alarm U-Lock w/Cable)

9.8

BLACKSTONE

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Why we love it

Loud 130db alarm deters thieves effectively.

Heavy-duty U-lock and cable ensure maximum security.

Comes with 3 keys and key replacement card.

Main highlights

14mm U Shackle and Loud 130db Alarm
Blackstone bike lock with a 14mm U shackle and 130db alarm system for maximum protection against theft.

Ideal for High-Theft Areas
Perfect for securing e-bikes, electric bikes, scooters, and motorcycles in areas with high theft rates.

Highly Effective Alarm System
Customers praise the loud alarm system for effectively deterring theft attempts and providing peace of mind.
#2

Value for Money
BLACKSTONE Stainless Steel U Bike Lock - 130dB Alarm, Reinforced 14mm Shackle - Ideal for Urban Cyclists & E-Bikes w/Double-Looped Steel Cable

9.5

BLACKSTONE

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Main highlights

Versatile Usage: Perfect for securing not only bikes but also scooters, E-Bike, and other valuable outdoor equipment, our U lock is a versatile solution for all your security needs.

52Inch double-looped steel cable 12mm thick (including PVC covering). You can use the cable to lock the frame, your helmet, the wheels, or other bikes.

130 Decibel Alarm: When tampered with, the built-in 130-decibel alarm screams loudly, instantly deterring thieves and alerting you and those nearby to potential theft.
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#3
EnzZone Bike Lock Heavy Duty Anti Theft Alarm Bike U Lock, High Pitched Audible Alarm, Bicycle, Fits Fat Tire E-Bikes 20"x4" Wheels Scooters Motorcycles,16mm Stainless Steel Weather Proof 3 Keys (Red)

9.4

ENZZONE

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Why we love it

The bike lock is made of hardened steel, making it difficult to break.

The bike lock has a motion activated alarm, so youll know if someone is trying to steal your bike.

The bike lock comes with 3 sets of keys, so you can have a spare set.

Main highlights

SECURITY & PIECE OF MIND When your prized possession is out of sight - but within hearing range.

HARDEND MAX PERFORMANCE STAINLESS STEEL Resists Hand Tools, Bolt Cutters, and Leverage Attacks.

FITS WIDE TIRE WHEELS 20"x 4" Opening of Lock Measures 5''x 6" Heavy Duty Hardened Steel16mm With a High Pitched Audible Alarm that is motion activated.
#4
WSDCAM Bike Alarm with Remote 2 Pack, 113dB Wireless Anti-Theft Vibration Motorcycle Bicycle Alarm Vehicle Security Alarm System (Black)

9.2

wsdcam

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Why we love it

Extremely loud alarm deters thieves effectively.

Easy to install and use with remote.

Adjustable sensitivity for various needs.

Main highlights

Loud Alarm and Adjustable Volume
Features a 113dB alarm with adjustable volume to scare off thieves.

Ideal for Various Vehicles
Perfect for bikes, motorcycles, cars, and more with waterproof design.

Highly Praised Sensitivity
Customers love the adjustable sensitivity and effective deterrent capability.
#5
Mengshen Bike Lock with Remote Control, Anti-Theft Vibration Alarm with 31 Inch Cable Length, IP55 Waterproof for Bicycle Motorcycle Door Fence Gate Scooter Baby Stroller (Black)

8.9

Mengshen

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Main highlights

【IP55 Waterproof】It is suitable for indoor and outdoor use. No need to worry that the bike lock chain being rusted and corroded by the rain. Quality material make sure it can work properly in the temperature range of -10℃～+60℃(14℉～140℉)

【Anti-theft Bike Alarm】Not only works as a bike lock, but also a burglar alarm. Alarm will go off if move or vibration is detected. Alarm will also be triggered if someone try to cut lock or disassemble lock. 115dB Loud Alarm will be a great deterrence.

【2 Ways to Lock & Unlock】This lock cable can be locked/unlock via remote control or password, no keys required. Remote control distance up to 40 meters. 4-digit password, password combination up to 256 groups.
#6
Smart Bike Lock/Bicycle Lock Bluetooth APP Controlled Nulock,Bike Alarm Lock 110db,47 inch Long Braided Steel Motorcycle Lock Anti Theft,IP44 Splash-Proof Bike Alarm Lock for Scooter/Stroller/Gate

8.7

NUNET

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Why we love it

The Nulock bike lock is a smart, convenient way to secure your bike.

The lock features an alarm and is made of sturdy, cut resistant material.

The Nulock is also waterproof and operates in a wide range of temperatures.

Main highlights

【ROBUST & ANTI-CUTTING】Nulock bike lock cable material:7 braided steel (each is made of 19 braided steel) combined with rust-protective vinyl increase cut resistance for a long time use. Braided Cable is 0.4" in diameter and 47" in length works for mulitple bikes locking, motorcycle wheels,stroller wheels,gate,farms,lawn mowersfences,sports equipment,tool boxes,or various safety applications et.Perfect bike locks heavy duty anti theft and motorcycle locks heavy duty anti theft.

【SMART & CONVENIENT】Bluetooth bike lock,no combos,easy to connect between Nulock and the phone over Bluetooth,Apps work for Both iOS and Android (make sure the screws for the battery cover are tightened and pressing lock button before pairing with the phone).No worry about key lost any more. If you bought our old version a couple of years ago with Nulock app, please download the SLBLOCK app to your new phone.

【ALARM & ANTI-THEFT】Vibration, breakage, disassembly and cable clipping triggers alarm at 110db to deter thieves or burglary (vibration alarm will NOT work when the owner's phone is connected to the device.). Heavy duty cable lock with alarm for bike,electric vehicles,motorcycle,snowboard etc with anti-theft.
#7
AKM Safe 80db Alarm 4ft/120cm Long Anti Theft Heavy Duty Motorcycle Chain Lock 3/8''/10mm Thick Weather Proof Durable Chains with 3 Customized Keys,Ideal for Bikes,Bicycles,Scooters,Moped

8.5

AKM

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Why we love it

80db alarm: Loud to deter thieves.

Strong chain: Resists prying and cutting.

3 Keys: Hard to duplicate and prevent key loss.

Main highlights

【Strong Cut Resistant】Square link chain is made of triple-heat-treated manganese steel, providing maximum strength and strong resistance against prying and cutting. It offers reliable protection wherever you park, making it much safer than many other chain locks on the market. The chains come with a soft, durable canvas sleeve that reduces wear and noise.

【80db Alarm】Press the red button for alarm setting, 80db alarm will be issued when vibration is received. Its alarm feature should do a great job scaring off thieves. (80db can be considered the sound of a busy road with cars.)

【3 Double-bitted Keys】Made of hard and durable stainless steel, never bend or twist or wear out and difficult to duplicate. Anti-theft lock cylinder design, the key can only be pulled out after locking to prevent key loss. One for daily use, the others are self-assigned.
#8
Crystal Vision Anti Theft Loud 130db Alarm Heavy Duty Bike Lock Weather Proof Multi Purpose (U Lock 14mm)

8.4

Crystal Vision Technology

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Why we love it

This bike lock has a loud alarm to deter thieves.

It is made of heavy duty materials for added security.

It is weather proof to protect your bike in all conditions.

Main highlights

Key Features
130db alarm, heavy-duty, weatherproof, multi-purpose bike lock ensures maximum security and durability in all conditions.

Ideal Use Cases
Perfect for securing bikes outdoors, in public spaces, or areas prone to theft, offering peace of mind to cyclists and commuters.

Customer Reviews
Most praised for its loud alarm, deterring potential thieves and providing users with added security and confidence.
#9
eMjollRay Bike Alarm,110dB Loud Waterproof Wireless E-Bike Alarm with Remote,Anti Theft Alarm Adjustable Volume Motorcycle Alarm Wireless Motion Sensor Alarm for Bicycle, Ebike,Ebike Accessories

8.1

eMjollRay

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Main highlights

【IP65 Waterproof Wireless E-Bike Alarm with Remote】The waterproof alarms meets IP65 waterproof standard, ensuring normal operation even in rainy or vehicles washing conditions, making it perfect for outdoors. And eMjollRay bike security alarms comes with wireless remote control for easy operation. Its vehicle search function help you to easily locate your vehicle in crowded parking lots.The effective distance between the remote control and the alarm is 15-50 meters.

【Easy Installation Step】Step 1. Fix the anti-llosening nut first.Step 2 Rotate the bracket into the back of the host until it locks,and then screw on to fix it.Step 3 Place 2 silicone pads on the two-part bracket,you should align the contours on the silicone pad with the grooves on the inside of the brackets;For more details, please refer to the instruction manual.

【Adjustable Up to 110dB Loud Bike Alarm】With a loud 110dB alarm,best bicycle alarm system anti theft .Activate the alarm when parking to effectively deter thieves and protect your car with a loud alarm sound. The 5-level volume adjustment ensures that the alarm is neither too quiet nor excessively loud.
#10
Kryptonite Alarm Disc, Heavy Duty Anti-Theft Motorcycle Lock with 120db Alarm, Weather-Resistant, Powersport Disc Break Lock

8.0

Kryptonite

-20%

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Why we love it

Loud alarm deters potential thieves.

Weather-proof design ensures durability.

Easy to set up and use.

Main highlights

High Security Alarm System
Features a 120db alarm for enhanced theft deterrence.

Ideal for Motorcycle Security
Designed specifically for securing motorcycles with a hardened steel pin.

Praised for Loudness
Customers appreciate the alarm's effectiveness in alerting theft attempts.

-20%

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bike lock with alarms

Blackstone Anti-Theft 130 db Alarm U-Lock Heavy Duty w/Security Cable (Alarm U-Lock w/Cable)

9.8

Why we love it

Main highlights

BLACKSTONE Stainless Steel U Bike Lock - 130dB Alarm, Reinforced 14mm Shackle - Ideal for Urban Cyclists & E-Bikes w/Double-Looped Steel Cable

9.5

Main highlights

EnzZone Bike Lock Heavy Duty Anti Theft Alarm Bike U Lock, High Pitched Audible Alarm, Bicycle, Fits Fat Tire E-Bikes 20"x4" Wheels Scooters Motorcycles,16mm Stainless Steel Weather Proof 3 Keys (Red)

9.4

Why we love it

Main highlights

WSDCAM Bike Alarm with Remote 2 Pack, 113dB Wireless Anti-Theft Vibration Motorcycle Bicycle Alarm Vehicle Security Alarm System (Black)

9.2

Why we love it

Main highlights

Mengshen Bike Lock with Remote Control, Anti-Theft Vibration Alarm with 31 Inch Cable Length, IP55 Waterproof for Bicycle Motorcycle Door Fence Gate Scooter Baby Stroller (Black)

8.9

Main highlights

Smart Bike Lock/Bicycle Lock Bluetooth APP Controlled Nulock,Bike Alarm Lock 110db,47 inch Long Braided Steel Motorcycle Lock Anti Theft,IP44 Splash-Proof Bike Alarm Lock for Scooter/Stroller/Gate

8.7

Why we love it

Main highlights

AKM Safe 80db Alarm 4ft/120cm Long Anti Theft Heavy Duty Motorcycle Chain Lock 3/8''/10mm Thick Weather Proof Durable Chains with 3 Customized Keys,Ideal for Bikes,Bicycles,Scooters,Moped

8.5

Why we love it

Main highlights

Crystal Vision Anti Theft Loud 130db Alarm Heavy Duty Bike Lock Weather Proof Multi Purpose (U Lock 14mm)

8.4

Why we love it

Main highlights

eMjollRay Bike Alarm,110dB Loud Waterproof Wireless E-Bike Alarm with Remote,Anti Theft Alarm Adjustable Volume Motorcycle Alarm Wireless Motion Sensor Alarm for Bicycle, Ebike,Ebike Accessories

8.1

Main highlights

Kryptonite Alarm Disc, Heavy Duty Anti-Theft Motorcycle Lock with 120db Alarm, Weather-Resistant, Powersport Disc Break Lock

8.0

Why we love it

Main highlights

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