Think about this, you went to the grocery store near your house on your bicycle. You buy some veggies for dinner, and as soon as you get outside after paying your bill, you see that your bicycle is not present where you parked it while going inside. It’s stolen.

Cases of keyless cars getting stolen are quite common, but bikes/cycles and electronic bikes are not in less danger.

What can you do about it? No worries, we have the solution for you. Anti theft alarms for bikes are devices that can help you protect your bicycles from the sticky fingers of thieves. Good GPS trackers might help, but they are really hard to attach to a bicycle.

An anti-theft alarm project sets off as soon as any kind of motion takes place around the bike while it is in lock mode. You will catch the person trying to steal your bicycle before he/she even understands what happened. So, let’s start with our list of the best anti theft alarms for bikes which can be found on Amazon.

Table Of Content

Best Anti-Theft Alarms For Bikes: Comparison Table

(Best Alarm With GPS)<br>Galeo GPS Tracker And Alarm

(Best Alarm With GPS)
Galeo GPS Tracker And Alarm

  • Waterproof material
  • Tamper-resistant material
  • Dedicated mobile application for tracking and alerts
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(Best With Remote Control And Cheapest)<br>Wsdcam Vibration Alert<br>

(Best With Remote Control And Cheapest)
Wsdcam Vibration Alert

  • 82 feet remote control range
  • 4 different modes are available
  • Easy to install
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(Most Unique)<br>PADONOW Smart Bike Tail Light

(Most Unique)
PADONOW Smart Bike Tail Light

  • Prevents from accidents at night
  • Waterproof material
  • USB rechargeable
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7 Best Anti-Theft Alarms For Bikes

1. Fosmon Battery Operated Anti-Theft Bike Alarm

Anti-Theft Alarm For Bike-Fosmon

Locking your bicycle may help but the risk of your bike getting stolen is still high. Fosmon’s vibration trigger bike alarm exclusively increases the security around your bicycle. Just a nudge will set the alarm off and you can get hold of the thief quickly.

Its waterproof material can help you ride your bicycle while heavy downpours. A motion sensor in this alarm makes your bicycle secure. 7 different sensitivity levels for motion and 3 different volume levels make this product customizable.

This alarm is very easy to use. Just clean the surface where you want to attach the alarm, and once done, attach the alarm using adhesive or cable ties.

Now, you just need to press the arm button on the remote control. 5 seconds after you press the button, the device will be armed.

Not only for bikes but this alarm can be used in many ways, like a fence alarm, luggage alarm, etc. Thus, the multi-purpose property is another reason why you should grab hold of one of these alarms. If this product is used with locks, its anti-theft properties will be enhanced.

In case you fall from your bicycle and cannot get up, an SOS signal will be sent. It is a great feature to keep you safe, hence, this product is a great asset for you. A limited lifetime warranty is also offered with this product.


  • An in-built motion sensor secures your bicycle
  • Adjustable motion sensitivity and adjustable volume levels.
  • Waterproof material
  • Easy to install
  • SOS signal system


  • Limited lifetime warranty

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2. AGPTEK Disc Lock Alarm

AGPTEK Anti theft alarm - disc lock

A disc lock is placed on the brakes of a bike or motorcycle so that it prevents the wheels from rotating, hence, preventing theft.

In this product, you get a disc lock as well as an alarm. The alarm will go off as soon it feels any suspicious shock or vibration and will scare off any unwanted company around your bike.

The reminder cable can be stretched up to 5.2 feet so that you do not forget to take the lock off before riding your bike. It does happen sometimes that you forget to take off the lock in a hurry.

Made with waterproof material, this lock can protect your bicycle even on the rainiest days. So no worries about ruining the lock while riding or parking your bicycle on a rainy day.

The lock is corrosion-proof and cut-resistant, hence, it will not corrode even after continuous exposure to moisture and air simultaneously. Cut-resistance makes it really durable and the thief cannot cut or break the lock.

Batteries are to be used to activate the alarm and a key should be used to work with the padlock. This product is multi-purpose and can be used on a motorbike, scooter, sports bike, mountain bike, or racing cycle.


  • The lock is very sensitive to shock and vibration
  • Waterproof material
  • Corrosion-proof
  • Cut-resistant
  • It can be used on different vehicles


  • The battery is not rechargeable
  • A money-back guarantee is not offered

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3. Wsdcam Vibration Alarm

alarm for bike anti theft wsdcam

A remote control always makes it easier to operate a device. This anti-theft alarm for scooty/scooter and bikes comes with remote control with a range of up to 82 feet, which is, believe me, a really great advantage.

4 different modes, which are, arm, disarm, panic mode, and doorbell mode, make this product worth buying.

The panic mode prevents any trouble from getting serious and can be used as an SOS signal. There are 10 levels of adjustable sensitivity. You can either set it to a gentle push or a strong shake. The alarm sets off following the magnitude of the force that is exerted on it.

Moreover, this product is multi-purpose, as it can be used on vehicles as well as on the doors and windows. Battery operated and with a continuous standby duration of 1 year, this product can prove to be a strong resource.

A double-sided tape or sticker or just a strap can be used for tying this alarm anywhere you like making it really easy to install. Furthermore, this product can be paired with multiple remote controls which makes it more convenient to use.

The alarm needs 2 AAA batteries which are not included, whereas the remote control needs a 12V alkaline battery that is included. This is also the cheapest product on the list.


  • 82 feet remote control range
  • 4 different modes are available
  • Easy to install
  • 1-year continuous standby
  • A remote control battery is included.
  • The alarm can be used on doors or windows
  • Adjustable reaction sensitivity


  • This product is not waterproof
  • The battery is not rechargeable

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4. Galeo GPS Tracker And Alarm

Galeo GPS tracker and alarm for bike

The most unique product on the list is here. It’s an anti theft alarm for bikes with GPS. A dedicated mobile application is to be used with the product for GPS tracking. A SIM is included in this alarm.

Remote control activated alarm adds to the convenience that you get when you buy this product. The battery is rechargeable.

USB C type charging cable is included in the set which is 2 meters long, hence you can connect it to a charging adapter 6 feet away. The battery can last up to 3 weeks and then be recharged.

Optional data plans are offered with this product but these are available in the United States of America only, which is a slight disadvantage. But if you live in the US, no worries, just avail the plans and secure your bike.

This product is waterproof and tamper-resistant. Firstly, the waterproof material helps you ride on rainy days without any worry about the material corroding. Secondly, are you worried about rough treatment on your alarm? Don’t worry, the bolts that are included as well as the alarm itself are tamper-resistant.

A notification is sent to your mobile’s dedicated application when your vehicle sets into motion. When your bike stops, after five minutes of inactivity, the motion alert gets into action again.


  • GPS tracker and anti-theft alarm
  • Waterproof material
  • Tamper-resistant material
  • Dedicated mobile application for tracking and alerts
  • USB type C charging cable for fast charging
  • Rechargeable battery
  • 3-week battery backup


  • Optional data plans are available in the US only
  • This product is very expensive

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5. PADONOW Smart Bike Tail Light

PADONOW bike tail light and alarm

Nightriders would be very pleased by this anti-theft alarm for cycles and bikes. This bike tail light and alarm will help you prevent accidents while you patrol your area on your bike at night.

This bike tail light will automatically activate when your bike is in motion or is constantly vibrating.

USB rechargeable battery and long battery life make this product very reliable and trustworthy. If you have this tail light, you don’t have to worry about charging it up every time you turn it on. 3 levels of alarm sounds scare off the person who is trying to steal your lovely bike.

This product is waterproof, so just buy this, and ride out in the rainiest days of the year without the care of the alarm corroding or getting spoiled.

This product is very easy to install or disassemble. A bracket has been given in the set for holding the remote control on your bicycle.

Once in motion, your bike tail light will light up and give a long ray signal to the vehicle behind your bike. It makes your vehicle very safe and secure. Plus the alarm prevents any unwanted guests around your bicycle. What else do you need?


  • This is a bike tail light alarm
  • Prevents from accidents at night
  • Waterproof material
  • USB rechargeable
  • 3 levels of alarm sound
  • The alarm is remote controlled
  • A special bracket has been provided for holding the remote


  • A Money-back guarantee is not offered

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6. Crystal Vision Anti-Theft U Lock

Anti-theft alarm and U bike lock - crystal vision

This lock is another unique product that takes your bicycle’s security to a higher level. Its 14mm thick U-Bar makes it heavy duty and very hard to breach through. Moreover, you can just lock your bicycle without activating the alarm.

Waterproof material makes this product immune to rust and the alarm will ring whether the day is wet or dry. A holder has also been provided for carrying it so it does not fall off and lose it while you’re riding.

The set contains batteries, a lock holder, a lock body, a U-bar, and keys. This is all you need to protect your bicycle from burglars who want to keep your bicycle without your blessings. This is also a multi-purpose lock as it can be used on gates, e-bikes, and motorcycles.

A loud alarm rings as soon as the bar feels any suspicious vibration around itself. The alarm will alert you and you can easily catch the guy trying to steal your ride. Even if the person manages to get away, he/she will be terrified to put their hands on anyone’s bike again.


  • This is a very heavy duty U lock
  • 14mm thick bar
  • Waterproof material
  • Batteries are included in the set
  • Multi-purpose lock
  • Very loud alarm


  • The batteries are not rechargeable

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7. Nulock Keyless Bluetooth Cycling Lock And Alarm

Nulock keyless bluetooth alarm for bikes

Convenience comes in handy with this product as it is keyless and its app works for both IOS and Android. So no matter whichever operating system you use, this lock is accessible across all platforms.

Multi-purpose stuff always convinces us to buy it because it can be used for many tasks at the price of one product. This product is no different. This anti-theft alarm is for scooters, scooty, bikes, e-bikes, motorcycles, gates, emergency generators, and even a garbage can.

The alarm is certified to be splash-resistant and can easily operate between 14-140 degrees Fahrenheit. The batteries can last long up to 5 months. When the batteries are below 20% on their charge, the mobile application will notify you to use new batteries.

The vibration will trigger the alarm if the lock is not activated. When you get in range of the device, which is 10-30 feet, the lock will automatically detect your mobile. A pop-up notification will also be sent to your mobile as soon as your lock gets connected.

Braided steel cable makes the product heavy duty. Moreover, the waterproof property enhances your convenience and helps protect the lock from corrosion.


  • Dedicated mobile application is available for both Android and IOS
  • This is a multi-purpose product
  • Waterproof material
  • High and low-temperature resistant
  • 10-30 feet Bluetooth range
  • Heavy-duty braided cable steel


  • The batteries are not rechargeable
  • No money-back guarantee

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How To Choose The Best Anti-Theft Alarm For Your Bike: Buying Guide

1. Anti-Theft Properties

Anti-theft alarms are not something you can buy every day. Many companies exaggerate their product but it is not at all worth buying.

Buy an alarm that you think can protect your bicycle the best and you do not have to care about your bike getting stolen.

2. Convenience

Some of the alarms you may find on Amazon are cheap but they are not that easy to use.

Try to grab an alarm that is really easy to install, use, and disassemble. Believe me, you don’t want to get frustrated just because you can’t install it.

3. Water-Resistance

Bicycle rides are often taken during heavy rains. Continuous exposure to water can spoil the batteries or even cause harm.

Choose an alarm that is guaranteed to be water-resistant so that you can carefreely ride on a rainy day.

4. Corrosion-Resistance

Now, suppose you bought an alarm that is water-resistant, and you are riding in the rain. But some days later you noticed that the alarm has caught rust.

Get an alarm that is corrosion resistant and doesn’t trouble you by catching rust.


How Do I Make My Bike Anti-Theft?

The best way to protect your bike from thieves is through an anti-theft bike alarm.

How Do Bike Alarms Work?

Bike alarms are triggered by any unauthorized vibration, motion, or movements.

Do Bikes Get Stolen Often?

Over 190,000 bicycles are stolen every year in the US alone. So you can well imagine how common is bicycle theft.

How Thick Should A Bike Lock Be?

A bike lock, in order to be safe, should be at least 12mm thick.

Is It Worth Reporting A Stolen Bike?

Some people just ignore and forget about their bikes getting stolen. People should report a stolen bike so that the police can solve bike crimes.