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10 Best Bike Alarms 2025 in the United States

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Our Top Picks

#1

Winner

YOHOOLYO Alarm Disc Lock Motorcycle Disc Brake Lock Anti-Theft Waterproof 110 dB 7mm Pin 5ft Reminder Cable for Motorcycles Bike Scooter Carry Pouch (Black)

Rating
9.9
Chosen by1,280
Alarm Volume
Sensitivity
Battery Life

Most important from
10038 reviews

Alarm Volume
The alarm is incredibly loud and noticeable even from several hundred feet away, making it a strong deterrent.
Sensitivity
It's very sensitive, sometimes triggering from rain or slight movements, which can be both a pro and a con depending on your environment.
Battery Life
Batteries last impressively long, surviving an entire riding season without showing signs of running out.

The YOHOOLYO Alarm Disc Lock is a solid choice for securing your motorcycle, bicycle, or scooter. It is made entirely of metal, which makes it sturdy and durable. The alarm reaches a loud 110 dB, which is effective in deterring potential thieves. The 7mm pin allows for flexible positioning on the disc brake, and the lock fits various vehicles with disc brakes, including motorcycles and scooters.

The alarm is sensitive, with a motion sensor that triggers after a 5-second delay, providing a good balance between sensitivity and false alarms. It is also resistant to physical damage and weather conditions, ensuring reliability in different environments. The lock includes six internal batteries and six backup batteries, which extend its usage time. Additionally, an Allen wrench and carry pouch are provided for convenience.

It is worth noting that the item is relatively small and lightweight, at 12.3 ounces and dimensions of 3 x 2.8 x 1 inches, which might make it less intimidating to potential thieves. Also, installation might require some practice, especially for users not familiar with disc brake locks. The inclusion of a reminder cable helps prevent accidental riding with the lock engaged. Given its combination of features, this product is a reliable choice for those seeking a robust anti-theft solution for their vehicles.

Rating
9.9
Chosen by1,280
Alarm Volume
Sensitivity
Battery Life

Most important from
10038 reviews

Alarm Volume
The alarm is incredibly loud and noticeable even from several hundred feet away, making it a strong deterrent.
Sensitivity
It's very sensitive, sometimes triggering from rain or slight movements, which can be both a pro and a con depending on your environment.
Battery Life
Batteries last impressively long, surviving an entire riding season without showing signs of running out.
#2

Wsdcam 113dB Bike Alarm Wireless Vibration Motion Sensor Waterproof Motorcycle Alarm with Remote

Rating
9.8
Alarm Volume
Sensitivity
Ease of Installation

Most important from
17067 reviews

Alarm Volume
The alarm is very loud and effective as a theft deterrent, making it a great product.
Sensitivity
The unit is configurable with easy-to-understand instructions, allowing you to adjust the sensitivity and volume of the alarm.
Ease of Installation
Installation is easy and the alarm is unobtrusive, which is perfect for keeping your motorbike safe from tampering and theft.

The Wsdcam 113dB Bike Alarm offers a loud alarm volume, which is an essential deterrent against theft. With 7 levels of sensitivity, the alarm can be adjusted to suit different environments and preferences, making it versatile. The adjustable sensitivity is particularly useful for preventing false alarms in high-traffic areas. Battery life is enhanced by battery-saving technology, which is important for reducing maintenance and ensuring long-lasting performance. The IP55 waterproof rating ensures the alarm can withstand various weather conditions, a critical feature for outdoor usage.

Installation is straightforward with wireless control via a remote, which has a strong range of up to 66ft, allowing convenient operation. Additional features like the vehicle search function with 3 kinds of bells can help locate your bike in crowded parking lots. The alarm's compact dimensions make it suitable for bikes, electric bikes, motorcycles, and scooters.

However, the battery-powered nature might require periodic replacements, which could be a minor inconvenience. Additionally, while the alarm is effective, the remote control range might not be sufficient for very large areas. The product is well-made, but some users might find the sensitivity settings challenging to fine-tune initially. The Wsdcam 113dB Bike Alarm is a robust choice for various types of vehicles, offering reliable performance and useful features, though it might need slight adjustments in sensitivity settings and battery replacements over time.

Rating
9.8
Alarm Volume
Sensitivity
Ease of Installation

Most important from
17067 reviews

Alarm Volume
The alarm is very loud and effective as a theft deterrent, making it a great product.
Sensitivity
The unit is configurable with easy-to-understand instructions, allowing you to adjust the sensitivity and volume of the alarm.
Ease of Installation
Installation is easy and the alarm is unobtrusive, which is perfect for keeping your motorbike safe from tampering and theft.
#3

USUPERINK Wireless Bike Alarm with Remote, Anti-Theft Bicycle Motorcycle Alarm Wireless Security Vibration Motion Sensor Alarm, IP65 Waterproof Super Loud 113dB Alarm (2 Set)

Rating
9.6
Alarm Volume
Ease of Installation
Additional Features

Most important from
1713 reviews

Alarm Volume
Gives a warning beep and then goes off loudly if the bike is moved again.
Ease of Installation
Easy to attach to our e-bikes, adding security especially when alarmed overnight while camping.
Additional Features
Work perfectly to protect our e-bikes and have even had people ask where we got them.

The USUPERINK Bike Alarms for Ebikes come with a robust set of features aimed at providing effective anti-theft security. One of its standout strengths is the alarm volume, which can reach up to 113dB—super loud and excellent for deterring thieves. The alarm also offers three adjustable volume levels and seven levels of sensitivity, allowing users to tailor the settings to their specific needs, whether it's a gentle touch or a strong push that triggers the alarm. This flexibility makes it suitable for various applications, including bicycles, motorcycles, and even doors and windows.

The IP65 waterproof rating means it can handle outdoor conditions well, adding to its durability and reliability in different weather scenarios. Another advantage is the ease of installation—no screws or wiring are required, and it comes with double-sided stickers and straps for straightforward setup. The wireless remote control is a convenient feature, offering a strong range of up to 66 feet, and includes a vehicle search function to help locate your bike in a crowded area.

The product does have some limitations. Battery life could be a concern as it requires 3 AAA batteries, which might need frequent replacements depending on usage. Additionally, while the alarm can be very loud, some users might find even the lowest setting too loud for their preference. The remote control feature is quite useful, but it could be less reliable if obstructed by physical barriers. Despite these minor drawbacks, the USUPERINK Bike Alarms for Ebikes offer a solid balance of functionality and user-friendly features, making them a strong choice for those looking to enhance the security of their bikes or similar items.

Rating
9.6
Alarm Volume
Ease of Installation
Additional Features

Most important from
1713 reviews

Alarm Volume
Gives a warning beep and then goes off loudly if the bike is moved again.
Ease of Installation
Easy to attach to our e-bikes, adding security especially when alarmed overnight while camping.
Additional Features
Work perfectly to protect our e-bikes and have even had people ask where we got them.

Buying Guide for the Best Bike Alarms

Choosing the right bike alarm is crucial for ensuring the safety and security of your bicycle. A good bike alarm can deter thieves and provide peace of mind when you leave your bike unattended. When selecting a bike alarm, consider the following key specifications to find the best fit for your needs.
Alarm VolumeAlarm volume refers to how loud the alarm sounds when triggered. This is important because a louder alarm is more likely to scare off potential thieves and attract attention. Alarm volumes are typically measured in decibels (dB). Lower volumes (around 80-90 dB) are suitable for quieter areas, while higher volumes (100 dB and above) are better for noisy urban environments. Choose a volume level that matches the typical noise level of the area where you park your bike.
SensitivitySensitivity determines how easily the alarm is triggered by movement or tampering. High sensitivity means the alarm will go off with minimal disturbance, which is useful in high-risk areas but may lead to false alarms. Low sensitivity requires more force to trigger, reducing false alarms but potentially missing minor tampering. Consider your parking environment: high sensitivity for high-risk areas and lower sensitivity for more controlled environments.
Battery LifeBattery life indicates how long the alarm can operate before needing a recharge or battery replacement. This is important for ensuring continuous protection without frequent maintenance. Battery life can range from a few weeks to several months. If you use your bike daily and park it in high-risk areas, opt for a longer battery life to minimize the need for frequent recharges. For occasional use, shorter battery life may be sufficient.
Water ResistanceWater resistance measures the alarm's ability to withstand exposure to water, such as rain. This is crucial for outdoor use to ensure the alarm remains functional in all weather conditions. Water resistance is often rated using the IP (Ingress Protection) scale. An IP rating of IPX4 or higher is recommended for outdoor use. If you frequently park your bike outdoors, choose an alarm with a high water resistance rating.
Ease of InstallationEase of installation refers to how simple it is to attach and set up the alarm on your bike. This is important for convenience and ensuring the alarm is properly secured. Some alarms come with straightforward mounting systems, while others may require more complex installation. If you're not comfortable with DIY tasks, look for alarms with easy, tool-free installation. For those who prefer a more secure setup, alarms with more robust mounting options may be preferable.
Additional FeaturesAdditional features can include remote control, GPS tracking, and smartphone connectivity. These features enhance the functionality and convenience of the alarm. Remote control allows you to arm and disarm the alarm from a distance, GPS tracking helps locate your bike if stolen, and smartphone connectivity provides alerts and control via an app. Consider which features are most important to you based on your lifestyle and security needs.

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