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.

RANK NO. 1
Favoto Disc Lock Alarm, 110 dB Alarm Sound Disc Brake Padlock for Motorcycle e-Bike Bicycle Scooter, 0.27 inch/7mm Lock Pin with Reminder Cable and Carrying Bag (Red)
  • 【Push Down and Lock】 - Use of a disc lock can help prevent rollaway theft, it is quick to put on and take off, it doesn’t take up too much space and is not very heavy in weight. You have peace of mind knowing your bike is safe.
  • 【Vibration Alarm Sensor】- There are plenty of advantages to this disc locks, one important feature is that it has a vibration alarm sensor. The built-in chip will trigger the loud alarm (110 dB) that surpasses other locks.
  • 【Durable for Long-term Use】- With metal cover and stainless steel inside, it performs well in all weather conditions. The disc lock has 6 batteries installed, and another 6 for spare. A low-battery alarm will be triggered when it is running out of power.
  • 【Spring Reminder Cable Included】- A striking orange coiled reminder cable that you attach to the handlebar is included in the package to avoid potential damage that might be caused when you park your bike somewhere and forget about the disc lock.
  • 【7mm/0.27inch Lock Pin】- The disc lock is suitable for brakes within 7mm / 0.27 inch width. It works not only on bikes, but also on motorcycles, scooters, mopeds etc.
RANK NO. 2
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
RANK NO. 4
Bicycle Alarm, Wireless Anti-Theft Burglar Security Alarm for Bike Motorcycle Car Mobility Scooter Vehicles, 113db Super Loud and Waterproof (Remote Control Included)
  • 🚗【Mini Size】65mm*45mm, Compact with creative design.
  • 🚗【Waterproof】 PC material shell, IP55 waterproof, can use for outdoor.
  • 🚗【Super Loud Burglar Alarm】 113db, will be a great deterrence. 7 level adjustable sensitivity. Not only design for Bicycle, Motorcycles, can also works with e-bike, scooter, door and winodow.
  • 🚗【Easy Operation & Installation】With Remote Control, it's convenient to arm, diarm alarm, One-key find vehicle. Remote control distance up to 20m. Two install methods, paste it with double-sided sticker or tie it with straps.
  • 🚗【Long battery life】Low power consumption design, can work for a long time, wireless magnetic sensor, when the sensor detects someone coming in, it will alarm.
SaleRANK NO. 5
How to Troubleshoot, Repair, and Modify Motorcycle Electrical Systems (Motorbooks Workshop)
  • Motorbooks International
  • Martin, Tracy (Author)
  • English (Publication Language)
  • 208 Pages - 07/15/2014 (Publication Date) - Motorbooks (Publisher)
RANK NO. 6
Intelligent Bike Tail Light,Wireless Anti-Theft Bicycle Alarm,USB Rechargeable Taillights,Waterproof Rear Bike LED with Remote Control and Bell for Mountain Accessories
  • This multi-function taillight is integrated in the 3 in 1 (siren + taillight + bell): This is a good combination of bright taillight + intelligent remote alarm + electric bell to protect your bike from theft. All operations by remote control to complete.Like cicada-like shape is very good hidden in the seat under the bracket.
  • WIRELESS BELL FUNCTION :Driving bell / COB light source, 120 db bell sound crisp and bright with COB bright light source to simultaneously alert the front and rear, designed to protect you and others safe.In addition to that any movement of the bike and it will have warning beeps,If continue to move the bike, it will issue a harsh alarm sound to scare the thieves.
  • STANDBY FOR LONG TIME: USB charging / battery energy saving and durable, 2-3 hours of charging, standby more than 30 days, 15-20 days of normal work. A6 provide a long-term protection of your safety.
  • A key search / smart alarm: wireless remote control stable and accurate, car-level anti-theft system to complete a key control, for your bike to provide a full range of protection
  • 100% MONEY BACK GUARANTEE: Backed by our exclusive 1 Year Warranty and 30 Day Money Back Guarantee.
RANK NO. 7
SOWUNO 125Db Loud Bicycle Electric Horn USB Charging Bike Alarm Bells with 2 Remote Control Waterproof Ring Anti-Theft Vibration Alarm for Mountain Bike | Road Bicycle | Scooters etc (Black)
  • 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.
SaleRANK NO. 8
G Keni Bike Alarm Tail Light with Remote, Anti Theft Bike Rear Light with Smart Brake Sensing, Ultra Bright Bicycle Light, Rechargeable Taillights for Bikes, Waterproof Bicycle Alarm
  • 【Bike Alarm and Tail Light】Combination of anti-theft alarm and smart bike tail light. The bike security alarm can make a loud sound(115db) to draw people's attention. COB leds and 200 degree wide angle design makes your bike more visible for other road users in dark night or daytime.
  • 【Smart Brake Sensing Bike Light】Inside brake sensor makes the ultra bright brake light automatically turn on. The bicycle tail light is bright and highly visible from a distance.
  • 【Light Perception Bike Rear Light】If you drive in a dark environment, the taillights will automatically turn on. After leaving the dark room, and if the bicycle does not vibrate for 30 seconds, the taillights turn off automatically.
  • 【IPX65 Waterproof & USB Rechargeable】Don't worry about splashing puddles or rainy weather because of its outstanding waterproof function. Built-in 800mAh Polymer Lithium battery comes with a USB cord that charges from your computer, wall charger, power bank or any other device with a USB port. After charging for 3 hours, the tail light can work for 20—40 hours in 3 different modes. (Slow flash-40h, Breathing flash-30h, Steady on-20h).
  • 【Easy Mounting Bike Taillight】Come with accessories that install bike tail light and remote. Saddle mounting bracket and adjustable silicone strap are provided, which make the bicycle rear light flexible to install on bicycles, seat post, seat tube bracket.
RANK NO. 9
Seculex Anti-Theft Bike Alarm with Remote, 113dB Vibration Wireless Alarm, Motorbike Alarms Waterproof with Adjustable Sensitivity for Bicycle Motorcycle Security, Battery Included
  • 🚴 Vibration wireless bicycle alarms play a key role in anti-theft. Use triaxial accelerometer sensor and special calculation to increase accuracy of robber manner recognition. Suitable for bikes, motorcycles, electric bicycles, electric scooters, etc. Also can install sensor alarms on your doors and windows.
  • 🚴 Anti-theft bike alarm has 7 adjustable level of sensitivity, from soft touch to push beat and suitable for all conditions. Wireless remote operation, remote control range up to 20M/66FT. The bicycle burglar alarm is also equipped with SOS emergency function and vehicle search function with 3 ringtones.
  • 🚴 Wireless motorcycle bike alarms have up to 113dB loud to scare off thieves. Three-level volume adjustment function, don’t worry about the alarm is extremely loud or not loud. IP55 water&dust proof, very perfect for outdoor use.
  • 🚴 Bicycle vibration alarm has two kinds of installation methods: double-sided tape or cable tie. The host uses 3 pcs AAA batteries(included) which can be daily used for 6~10 months. Also has a battery low power LED indicator.
  • 🚴 100% customer satisfaction service, 30-day money-back guarantee for any reason for undamaged product, 12 months warranty for quality-related issues, we take care of all quality-related issues with a REPLACEMENT.
RANK NO. 10
Onvian 113dB Wireless Anti-Theft Motorcycle Bike Alarm Waterproof Bicycle Security Alarm Vibration Motion Sensor with Remote
  • 【Multipurpose】Act as a great bike theft deterrent. Vibrationaly triggered alarm suitable for bicycle, motorcycle, electric bike, electric scooter and so on. You can also use for doors and windows alarm vibration sensors.
  • 【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.

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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