Are you looking for an alternative method to the traditional chain and lock to protect your bikes? Then the solution for you could be the sound alarm if you do not know which anti-theft to choose for your bike.

Take a look at our guide that provides you with some useful information and compares the prices and reviews of the models in the ranking below, they are among the best sellers and appreciated on the market.

Right here are the best bike alarms with the latest and advanced features that are listed below.

SaleRANK NO. 1
Wsdcam 113dB Bike Alarm Wireless Vibration Motion Sensor Waterproof Motorcycle Alarm with Remote
  • Suitable for Bikes, Electric Bike, Motorcycles
  • Vibration alarm, 7 level sensitivity adjustable
  • IP55 waterproof, suitable for outdoor use
  • Vehicle search function, easy to find your vehicle by 3 kinds of bells
  • Wireless control by remote, strong wireless range up to 66ft
RANK NO. 2
Onvian Bike Alarm 2-Pack, Wireless Anti-Theft Motorcycle Alarm Waterproof Bicycle Alarm Security Vibration Motion Sensor for Bike, Motorcycle, Electric Scooter, Moped, Etc - 113dB
  • 【Multipurpose Bike Alarm】Act as a great bike theft deterrent. Vibrationaly triggered alarm suitable for bicycle, motorcycle, electric bike, electric scooter and so on. Usually used as good motorcycle accessories, scooter accessories, bicycle accessories, etc.
  • 【Super Sensitive to Motion】7 level adjustable sensitivity from gently touch to push or beat, you can easily set it according to your need. Wireless remote control operation, remote control range up to 20M/66FT.
  • 【Extremely Loud 113dB】Onvian bike security alarm can make a loud sound to draw people's attention. 113dB Loud can effectively scare thieves away, can also be used as SOS emergency alarm.
  • 【Easy Installation and Waterproof】This motorcycle bicycle burglar alarm Installation by pasting with double-sided sticker or tieing it with strap. No wiring, no screw. Water resistant rated to IP55 - Can use for outdoor.
  • 【Mini Size】3.7"*1.6"*0.8" exquisite and compact design, easy to hide and install, 3 kinds bell sound can operate by remote control, easy to find the vehicles position.
SaleRANK NO. 3
WSDCAM Anti-Theft Bike Alarm with Mount, 113dB Burglar Vibration Motorcycle Bicycle Alarm Security System Waterproof Cycle Bike Alarm with Remote
  • This bike alarm come with mounting bracket, adjustable ring size, more stably securely mount on your bike, no drop probability, and easy to change the installation position
  • Deterring thieves effectively up to 113 dB loud alarm, 3 lever adjustable volume, don’t worry about the alarm is extremely loud or not loud
  • 7 level adjustable sensitivity from gently touch to push or beat. IP55 waterproof, suitable for outdoor use
  • Vehicle search function, easy to find your vehicles in parking lot, 3 kinds of bells for your choice, wireless control by remote, strong wireless range up to 66ft
  • Vibration triggered alarm suitable for Bikes, Electric Bike, Motorcycles, Scooter, Car, Trailer, Luggage, Doors and Windows...
RANK NO. 4
Wsdcam Bike Alarm with Remote 2 Pack, 113dB Wireless Anti-Theft Vibration Motorcycle Bicycle Alarm Waterproof Vehicle Security Alarm System
  • [LOUD ALARM & ADJUSTABLE VOLUME] Up to 113dB LOUD alarm, scare off potential thieves effectively. Well-made alarm with great performance. 3 lever adjustable volume, don’t worry about the alarm is extremely loud or not loud
  • [ADJUSTBALE SENSITIVITY & WATERPROOF] 7 level adjustable sensitivity from gently touch to push or beat, easy to set it as your need. IP55 waterproof, suitable for outdoor use
  • [REMOTE CONTROL] Wireless control by remote, strong wireless range up to 66ft. Vehicle search function, easy to find your vehicles in parking lot, 3 kinds of bells for your choice
  • [EASY TO INSALL & USE] Super easy installation by pasting with double-sided sticker or tying it with strap. Package Including: 2 Pack of bike alarm set
  • [MULTI-PURPOSE ALARM] Vibration triggered alarm suitable for Bikes, Electric Bike, Motorcycles, Scooter, Car, Trailer, Luggage, Doors and Windows...
RANK NO. 5
SuperInk 2 Set Wireless Bike Alarm with Remote, Anti-Theft Bicycle Motorcycle Alarm Wireless Security Vibration Motion Sensor Alarm, IP55 Waterproof Super Loud 113dB Alarm
  • [Multipurpose Bike Alarm]Motion sensor bike alarm has great bike anti-theft function. Vibration trigger alarm is very suitable for bicycle, motorcycle, electric bike, electric scooter and so on. You can also install a vibration alarm for your door or window, which will trigger the alarm when someone tries to open it.
  • [7 Levels Adjustable Sensitivity and SOS Emergency Alarm ]The 7 levels of sensitivity adjustable from gently touch to push or beat, you can be easily set according to your needs. This bicycle burglar alarm also has SOS emergency alarm.
  • [3 Levels Adjustable Volume and IP55 Waterproof] Motorcycle bicycle anti-theft alarm has up to 113lb LOUD alarm, scare off potential thieves effectively and attract people's attention. it also has a three-level volume adjustment function, so you don't have to worry about the volume being extremely loud or not loud. IP55 waterproof, very suitable for outdoor use.
  • [Wireless Remote Control ] SuperInk bike security alarm wireless control by remote, strong wireless range up to 20M/66FT. Vehicle search function, easy to find your vehicles in parking lot, 3 kinds of bells for your choice(Not available in ARM mode).
  • [Easy to Install & Use]The bike vibration alarm come with double-sided sticker and strap, which can be installed by pasting or tieing. No screws or wiring are required. The 3.7" * 1.6" * 0.8" exquisite and compact design is easy to hide and install.
RANK NO. 6
Upgraded Bike Alarm Waterproof with Remote, Vibration Motorcycle Bicycle/Door Burglar Alarm, Prevent Robbery and Door Prying, 113dB Loud, Adjustable Sensitivity, Scooter Accessories Vibration Sensors
  • SUPER LOUD 113DB - Vibration triggering loud alarm to scare away thieves.Prevent Robbery and Door Prying.
  • ADJUSTABLE SENSITIVITY - High sensitive vibration sensor,7 level from gentle touch to push or beat.Adjustable volume.
  • EASY OPERATION - Control with updated remote(keyfob), searching vehicle and fall for help SOS function. Second remote ASIN B084VTYF51
  • EASY INSTALLATION FIRM AND WATERPROOF - No wiring, no screw,provide super strong adhesive tapes and cable tie for installation.IP55 waterproof design, can use for outdoor.
  • MINI SIZE - 3.7"*1.6"*0.8" exquisite and compact design, easy to hide and install, suitable for bike/car/motorcycle/door/moped anti-theft alarm.
RANK NO. 7
SOWUNO 125Db Loud Bicycle Electric Horn USB Charging Bike Alarm Bells Bike Horn for Adults Waterproof Ring Anti-Theft Vibration Alarm for Mountain Bike | Road Bicycle | Scooters etc (Alarm Horn)
  • High-Decibel Horn: The alarm bell is a 125db high-decibel bell with large vibration and anti-theft alarm; the sound of the electric horn is the same as the horn of a motorcycle, but is different from the bell of an ordinary bicycle horn.
  • Anti-Theft Alarm: If a thief touches or pushes the bike, the alarm will emit a rapid and continuous loud alarm when it is shaken; the locking and unlocking are controlled by the equipped remote control, and the remote control distance is more than 30m; the large capacity of 1600mAH can exceed Long standby time.
  • One-Click Bicycle Search: When your bicycle is parked in a large parking lot, you can use the equipped remote control to click the bell button, and the bike alarm will emit super decibels to help you quickly find the bicycle.
  • High-Quality Material: Bicycle loud alarm bell is made of aluminum alloy, hard and firm, beautiful and exquisite in appearance, easy to install; bike bells is waterproof design, can be used in rainy days, and is durable;This bicycle bell is suitable for mountain bike, road bike, folding bike Scooters etc.
  • Highlight Combination: The Bicycle Electric Horn is equipped with a mounting bracket, 2 replacement remote controls, a USB charging cable, 2 sizes of screws (freely adjustable), a mini wrench, a cable tie, and 2 spacers and instructions to satisfy you all usage requirements.
RANK NO. 8
Onvian Bike Alarm with Remote, Wireless Anti-Theft Motorcycle Alarm Waterproof Bicycle Alarm Security Vibration Motion Sensor for Bike, Motorcycle, Electric Scooter, Moped, Etc - 113dB
  • 【Multipurpose Bike Alarm】Act as a great bike theft deterrent. Vibrationally triggered alarm suitable for bicycle, motorcycle, electric bike, electric scooter and so on. Usually used as good motorcycle accessories, scooter accessories, bicycle accessories, etc.
  • 【Super Sensitive to Motion】7 level adjustable sensitivity from gentle touch to push or beat, you can easily set it according to your need. A wireless remote control operation, remote control range up to 20M/66FT.
  • 【Extremely Loud 113dB】Bike security alarm can make a loud sound to draw people's attention. 113dB Loud can effectively scare thieves away, can also be used as an SOS emergency alarm.
  • 【Easy Installation and Waterproof】This motorcycle bicycle burglar alarm Installation by pasting with a double-sided sticker or tieing it with a strap. No wiring, no screw. Water-resistant rated to IP55 - Can use for outdoor.
  • 【Mini Size】3.7"*1.6"*0.8" exquisite and compact design, easy to hide and install, 3 kinds of bell sound can operate by remote control, easy to find the position of the vehicle.
SaleRANK NO. 9
Fosmon Anti Theft Burglar Bike Alarm with Remote, Waterproof Vibration Triggered Battery Operated Loud 113dB Wireless Siren for Bicycle, E-Bike, Motorcycle, Scooter, Cart, Trailer, Equipment, Fence
  • [LOUD 113dB BIKE ALARM] Fosmon’s 113dB loud vibration bicycle alarm with remote control is a great tool to protect your bike from theft. Keep your bicycle, e-bike, scooter, motorcycle, and more secured with this alarm.
  • [VIBRATION SENSOR AND SOS ALARM] When armed, this anti-theft bicycle alarm responds to vibration or being moved. You can manually adjust the 7 different sensitivity levels and 3 volume levels to best fit your setup. SOS function will detect an accident if the vehicle is tilted more than 45° from its original position, and then make a beeping sound to signal for help.
  • [EASY TO SET UP] This anti-theft vibration alarm is easy to set up. First, determine the mounting surface and clean accordingly. Then apply the provided adhesive or mount using the cable ties and brackets on the backside of the alarm. An alarm can be paired with up to 8 remotes.
  • [MULTI-PURPOSE ALARM] Use this anti-theft alarm for a variety of purposes: as a luggage alarm, fence alarm, trailer alarm, and more. This device works great as added security when used with locks as well.
  • [LIMITED LIFETIME WARRANTY] This product comes with a limited lifetime warranty. Please refer to Fosmon’s website for more information.
RANK NO. 10
Accolmile Electric Bike Bell Alarm Waterproof with Remote Controller, Anti-Theft Bike Horn with USB Rechargeable Function
  • 【Multipurpose】Can effectively prevent bicycle theft. Bike bell alarm suitable for bicycle, motorcycle, electric bike, scooter etc
  • 【Adjustable Sensitive】3 levels adjustable sensitivity, you can easily set it up according to your need. Wireless remote control operation, usb rechargeable, low battery electricty display
  • 【Extremely Loud 126dB】Can make a loud sound to draw people's attention. 126dB loud can effectively scare thieves away, also very easy to find the vehicles position
  • 【High Quality】Shell and bracket are made of stainless steel and aluminum alloy
  • 【Easy Installation and Waterproof】This bicycle bell alarm Installation by two screws, the fixing range of the screws is 15MM-55MM
RANK NO. 11
Bike Alarm with Remote 2 Pack, Loud 113dB Wireless Anti-Theft Vibration Motorcycle Bicycle Alarm IP55 Waterproof Super Vehicle Security Vibration Motion Sensor Alarm System
  • 🗽LOUD ALARM AND ADJUSTABLE VOLUME: Up to 113dB LOUD alarm, scare off potential thieves effectively. Well-made alarm with great performance. 3 lever adjustable volume, don’t worry about the alarm is extremely loud or not loud
  • 🗽ADJUSTBALE SENSITIVITY AND WATERPROOF:7 level adjustable sensitivity from gently touch to push or beat, easy to set it as your need. IP55 waterproof, suitable for outdoor use
  • 🗽REMOTE CONTROL: Wireless control by remote, strong wireless range up to 66ft. Vehicle search function, easy to find your vehicles in parking lot, 3 kinds of bells for your choice
  • 🗽EASY TO INSALL AND USE: Super easy installation by pasting with double-sided sticker or tying it with strap.
  • 🗽MULTI-PURPOSE ALARM: Vibration triggered alarm suitable for Bikes, Electric Bike, Motorcycles, Scooter, Car, Trailer, Luggage, Doors and Windows

Everything You Need to Know About Bike Alarms

Mechanical

Let’s start from the description of the mechanical anti-theft devices (chains, cables, U-shaped anti-theft devices), which are the most common and economic ones.

If you are going to buy such a system, never just fix the frame to a pole because they could take away wheels and a saddle. On the contrary, never just set the wheel because you could find only the one on your arrival.

If you fix the bike to a pole too low, they can take everything away from you by simply lifting it.

Having said that, one of the safest of the mechanical anti-theft devices is the U-shaped one because it has a considerable diameter that the thief will never be able to scratch with a standard wire cutter.

Of course, it is more substantial, but it cannot be compared to the simple steel cable that everyone can cut in a few seconds: this is because the cable is almost never often enough, say 1 cm in diameter.

Since these are products that have an affordable price, the right solution is to buy them both U-lock and cable. Indeed, sometimes they are sold together so that the wheels can be tied together with the wire and the frame can be fixed to a pole with the U-shaped mechanism.

As for combination or key chains, the quality of the steel and the thickness of the links must be assessed: the most straightforward and cheapest models can be broken in in no time.

The sheath and the external coating hinder the action of the mitre saw but, in general, it must be said that there is no system that can resist the attack of a good grinder.

Alarm

Another type of burglar alarm is that with acoustic alarm. How does it work? It consists of two parts: the actual device that emits the sound and the remote control.

The device must be fixed under the seat, the remote control must instead be set to the handlebar but can be detached to always keep it with you at the bar while having coffee or queuing at the post office.

When the attacker approaches and tries to move the bike, the alarm is triggered immediately by alerting the owner or otherwise acting as a deterrent for the thief.

This sound is audible but lasts a few seconds, and it serves only as a warning. If the thief persists or decides to remove the device from the seat, the alarm sounds continuous, without stopping; the only way to disable it is from the remote control which can have a range of several tens of meters or even 100 meters.

Often these (waterproof) devices are multifunctional because they also act as a practical rear light and even a bell. Take a look below, find some such models.

Gps

For some cyclists, the best anti-theft brand is the one that makes GPS models, those that work in conjunction with a SIM and therefore with your mobile phone. By identifying a perimeter that the bike cannot pass, the owner is immediately notified when someone takes it away.

These devices have the appearance of a standard rear light which however hides the satellite device inside or can be inserted into the barrel of the bike and be completely invisible on the outside.

On the phone, the map appears with the coordinates that indicate where the bike is located with a margin of error of a few meters.

These alarms have autonomy of a few days, then they must be recharged and can also be used on motorcycles or cars, even merely to check the movements made by a person who does not necessarily have to be the thief.

The Most Advanced Models

Starting from the most common systems, the U-shaped mechanical hook is well known among bike owners because it is difficult to cut or break (with wire cutters or hacksaws).

The consistency of the diameter prevents its removal, and thanks to the particular shape you can fix the frame to the pole. If you have an even better steel cable, because in this way you can tie the wheels to the U-hook, attaching this to the mast: ideal double protection if you have to leave the bike unattended for a long time.

Another extremely advanced system is the sound system which plans to place the alarm under the seat (check the compatibility between the two elements), and this starts to sound (reaching 120 decibels) as soon as the attacker tries to take the bike away, moving it or lifting it.

The warning continues to be issued even if an attempt is made to remove the seat and can only be deactivated via the remote control which has a range of 100 meters.

But the functionality of this system does not end there: in fact, it also acts as a bell and rear light. Therefore it proves even more useful by protecting your safety when you are pedalling. You can charge it via USB, and you won’t have to be afraid to leave it exposed to water, because it’s waterproof.

Gps Anti-Theft

The system equipped with a GPS antenna is even more advanced than those described so far. In combination with a SIM card, the burglar alarm warns the owner as soon as the bike exceeds the preset range of meters and the map is sent to him, useful for reaching the thief and recovering the motorcycle.

From the outside the alarm looks like a traditional position light but can also be inserted inside the barrel of the bike, being invisible to foreign eyes: given its size, it is incredibly versatile, and you can also use it on the machine or provide it to a person as support in any awkward moments.

Useful Tips for Cyclists

Regardless of the protection system, always tie your bike to a rack, a pole or a tree, to make theft more difficult and complicated. Don’t just match the saddle or the wheel, as these are easily detachable components: by removing the motor or the seat, and the attacker can take the rest of the frame home.

Tie the pole or tree to several elements of the bike, to discourage the thief who immediately realizes the complexity of the situation.

If you don’t want to resort to technology and prefer to use a traditional chain, choose at least the one with a square section. Finally, we conclude this guide by reminding you that no method is infallible, but that having targeted measures is an excellent deterrent.

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