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.

Bluetooth Chain Lock, Smart Waterproof Anti-theft Bicycle Chain Lock with App Control IOS/Android for Bike Motorcycle and Gate
  • High quality material: Made of ABS plastic and high density copper, durable, waterproof and anti-theft. Let you no longer worry that your property will be lost.
  • Anti-theft alarm: Designed with 110dB alarm function, it effectively scares theft and can be used indoors and outdoors.
  • Wide range of applications: This product is anti-cutting, anti-disassembly, removal alarm, vibration alarm. Suitable for all bicycles, motorcycles, doors, etc.
  • Low energy consumption: This product requires 3 “AAA” batteries, which can be used for 8 months in the case of switching twice a day. When the power of this product is less than 20%, the application will warn you that the battery of this product is low.
  • Multi-platform operation: For iOS and Android systems, just use your phone to lock and unlock your bike or motorcycle (for Android 4.3 and iPhone 4s and above).
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.
KCMYTONER 1 Pack Bike Alarm with Remote Adjustable Volume 113 dB Wireless Anti-Theft Vibration Waterproof Security Bicycle Motorcycle Alarm Vibration Motion Sensor Alarm
  • 👍【Multi-application】Can effectively prevent theft of bicycles. Vibrationaly triggered alarm suitable for bicycle, motorcycle, electric bike, electric scooter and so on.
  • 👍【7 level djustable sensitivity 】7 level adjustable sensitivity from gently touch to push or beat, you can easily set it according to your need. Wireless remote control operation, easy to use, remote control range up to 20M/66FT.
  • 👍【 Adjustable Volum and SOS function】Deterring thieves effectively by 113 dB loud alarm, adjustable Volum from 96dB, 105 dB to 113dB; It can sound SOS remind other for help when the accident was happened.
  • 👍【Easy Installation and Waterproof】Easy install, two install method: paste with double-sided sticker or tie it with strap. IP55 Waterproof, suitable for outdoor.
  • 👍【Exquisite design】Item Size:3.7"*1.6"*0.8" inch,6 kinds bell sound can operate by remote control, easy to find the vehicles position. Batteries: 3pcs AAA batteries for the host.(Contain) 1pcs 27A battery for the remoter.(Contain)
Wsdcam Bike Lock Alarm with Remote Universal Security Alarm Lock System Anti-Theft Vibration Alarm for Bicycle Motorcycle Door Gate Lock 110dB,31.49 inch Cable Length, IP55 waterproof Alarm Cable Lock
  • Bike alarm lock triggered by vibration, deterring thieves effectively by 110dB loud alarm. Suitable for Bikes, Motorcycles, Vehicle, Doors, Windows, Gate, or anything you wish to protect
  • Alarm cable lock made of braided steel and PVC coating, more strong and durable. 0.39 inch cable diameter, 31.49 inch cable length
  • Keyless secure lock with advanced 4-digit combination lock, allowing up to 100,000 possible codes making it nearly impossible to crack. It alarm alerts if inputted wrong password
  • Alarm lock with remote, remote control arm/disarm/vehicle search function, range up to 66ft
  • IP55 waterproof anti theft alarm lock, don’t worry about the alarm on rainy days
Zopsc Bicycle Wireless Lock with Alarm 115dB Electric Waterproof Bike Motorcycle Password Steel Remote Chain Lock, for Indoor/Outdoor
  • A lock can learn up to eight remote controls.
  • A remote controller can control multiple locks or similar remote alarms at the same time.
  • It can be used normally in the temperature range of - 10 +60℃.
  • IP55 waterproof and dust-proof grade, suitable for indoor and outdoor use.
  • Lock/unlock/lock-seeking car/learning code operation of remote control, LED indication.
SaleRANK NO. 6
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...
Mengshen Smart Wireless Remote Control Bike Bicycle Alarm Siren Shock Vibration Sensor Cycling Lock Anti-Theft Guard Burglar Alarm MS-Z04
  • Perfect to protect your shop, office, home, car, house or anywhere requiring protection.
  • Simple to operate and easy to install
  • Super loud, simple, easy to theft
  • Short leave cycling, no longer bother to go locked up
  • Wireless Vibration Alarm with infra-red remote control.
Tchipie Disc Brake Lock Motorcycle Alarm with 110db Alarm Sound, Anti Theft Security Wheel Disk Lock for 7mm Brake Rotor, Heavy Duty with 5 feet Reminder Cable for Motorcycles Bicycles
  • Motorcycle Theft Prevention: With built-in sensors detecting shocks and movements, the TCHIPIE anti-theft disk lock will keep your motorcycle safe, protected and theft-free as the audible alarm system will scare away suspects if they attempt it! According to NCIB 44,268 motorcycles were reported stolen last year, it's time to add additional security to your investment and prevent motorcycle theft from happening to you.
  • Audible Alarm Deterrent: Easy to lock with one-press operation, immediately the lock goes into alarm mode and you'll hear a “Beep” sound. When detects a vibration, it has a warning triple "Beep" to let potential theives know its armed. Then if it's triggered again the alarm gives off a continuous shrill alarm for about 30 seconds, the 100dB is loud enough for anyone to notice. To shut off the alarm you will either have to unlock it or wait 30 seconds.
  • For Rotors 7mm Thick or Less: Fits the majority of the motorcycles and bikes with disc brakes, where the brake rotor is less than 7mm (1/4") thick and cross drilled. Ideal active security device for most popular models: Harley Davidson, Yamaha FJR / Raptor 700, 2017 Honda Grom, 2017 Kawasaki Z125 / Kawasaki Ninja 250r 500r 650 2017 2012, 2016 Indian Scout Sixty, Triumph Bonneville Streetsmat, Victory CrossCountry, Honda shadow spirit, etc.
  • Having Peace of Mind: The bright red color and orange reminder cable can act as a decent visual deterrent for those potential thieves. Can give you ease of mind leaving your bike or motorcycle outside in a populated city, in the parking lot at work, during motorcycle ride, trips, or motel travels. Besides, we back your purchase with 3-month money back guarantee and extended 24-month product no-worry warranty!
  • Long Term Use: The Tchipie motorcycle wheel lock with siren has an alloy aluminum body, sealed against moisture, dust and dirt. It comes with battery already installed and an extra 6pcs set for when those run out. You can use the Allen key to change the batteries in seconds, or just to remove the batteries and use without alarm as a conventional lock.
Mengshen Bicycle Alarm, Wireless Anti-Theft Burglar Security Alarm for Bike Motorcycle Car Vehicles Door Window, 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.
  • 🎄 Expandable: If you need extra remote controls for family member or just for spare. Just order "More Remote Control" in the "Special offers and product promotions".
SaleRANK NO. 10
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...

Everything You Need to Know About Bike Alarms


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.


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.


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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