Best Bike Alarm for 2021: Our Top Picks

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If you are someone who uses a bike to commute, you’ll understand how important it is to keep your bike safe. Many people settle on using a bike lock, but these are easy to break.

A bike alarm is a very good product to use - they alert you when someone is messing with your bike lock. It could be the difference between having your bike stolen and preventing it from ever being taken.

What is the best bike alarm out there? There are a few options for you to choose from, but we have made a list of three of the most popular ones.

Comparison Chart

Wsdcam 113dB Wireless Bike Alarm

Crystal Vision SHBLA 130db Bike Alarm with Heavy Duty Bike U Lock

Wsdcam Remote Universal Security Alarm Lock System

Best Bike Alarm Reviews

Wsdcam 113dB Wireless Bicycle Alarm

This alarm lock is a very popular and highly-rated product. It is waterproof, loud, and remote-controlled. If you are searching for a durable, strong, and reliable bike alarm, this may be the product for you.


This product can be used on motorbikes, bicycles, cars, doors, and gates. In fact, it can be used on basically anything that you wish to protect.

This bike alarm lock is triggered by vibration. Once it is set off, it will repel any thieves with a 110dB loud alarm.

The alarm cable lock is made of braided steel and PVC coating - this makes the lock more durable and more reliable. The cable diameter is 0.39 inches thick and 31.49 inches long.

It has a secure keyless lock that requires four digits to open - this means that there will be 10,000 possible combinations, making it all but impossible to crack. Additionally, the alarm will alert you if a wrong pin code is entered.

The alarm lock comes with a remote that can arm and disarm the lock from up to 66 feet away. It is also an IP55 waterproof lock, meaning that you will not have to worry about it malfunctioning on rainy days.

The biggest negative of this product is its durability. Also, it is not sensitive enough.


  • Waterproof and weather-resistant
  • Strong, durable, and reliable
  • Loud (110dB)
  • Remote-controlled (66ft range)


  • Some durability issues
  • Not sensitive enough

Crystal Vision SHBLA 130db Bike Alarm

This alarm is very loud, highly-rated, and reliable. It is also waterproof, strong, and durable, making it a perfect option. You can purchase this product from bike shops, certain hardware stores, and online.


This product can be purchased at a bike shop, specific hardware stores, or online. However, it is usually cheaper to order it online.

This is a super loud alarm. If the lock is broken or disassembled, the alarm will emit a deafening 130dB siren. It will also be triggered if the cable of the lock is clipped or if it registers any vibrations. The product is also very strong and durable. The lock is made of stainless steel and is secured with a 14mm Quattro-locking, carbide-reinforced hardened-steel locking pin.

The entire alarm lock is waterproof and can operate in temperatures ranging from 14 to 140 degrees Fahrenheit. The battery, which is included, can last up to a year. The product requires a cr2 battery.

The premium holder of this lock is adjustable. The bracket of the product is suitable for a bicycle ellipse frame tubing from 1.5 inches to 3 inches.

One of the only downfalls of this alarm lock is its price. Out of the three products, it is the second most expensive.


  • Weather-resistant and waterproof
  • Loud alarm (130 dB)
  • Robust, durable, and reliable
  • Long-lasting battery
  • Battery included


  • Relatively expensive
  • Is not remote-controlled

Wsdcam Remote Universal Security Alarm Lock System

This product is reliable and highly-rated. It has many functions and features that can be easily adjusted. If you are in search of a durable and robust bike alarm, this could be the perfect product for you.


The product can be used to protect bicycles, electric bikes, motorcycles, scooters, cars, gates, and doors.

Any vibrations trigger the alarm. You can adjust how sensitive you want the alarm to be - it could be set to be triggered by just a gentle touch or by a hard push.

Once triggered, the alarm emits an ear-piercing 113 dB alarm, which will be more than enough to deter the thieves. The product is also an IP55 waterproof lock, making it suitable for outdoor use. The alarm functions in temperatures between 70 and 140 degrees Farhenheit.

The product makes finding your car easy as it has six different kinds of bells, which can be wirelessly controlled by a remote. The alarm is also super easy to install.

The alarm requires three AAA batteries. One set of batteries is included when you first purchase the product. Additionally, the remote requires a 12V/27A battery, which also comes included. The product also has a low battery indicator and an SOS function. The remote can be detected by the alarm from up to 66 feet away.

Additionally, this product is also very affordable. Of the three alarm locks, this Wsdcam Wireless Anti-theft Bike Alarm is the cheapest.


  • Strong, durable, and reliable
  • Loud alarm
  • Waterproof and weather-resistant
  • Remote-controlled
  • Inexpensive, but good quality
  • Battery included


  • Batteries require regular changing


If you are searching for a decent bike alarm lock, three very good options to choose from including the Wsdcam Wireless Anti-theft Bike Alarm, the Crystal Vision SHBLA Anti-theft Bike Alarm, and the Wsdcam Bike Lock Alarm.

Each product has its own features, pros, and cons. The Wsdcam Wireless Anti-theft Bike Alarm is cheaper than the other two alarms. However, the Crystal Vision SHBLA Anti-theft Bike Alarm emits the loudest sounds, which can be crucial in the event of someone trying to steal your property. The Wsdcam Bike Lock Alarm has the softest alarm, but it is also the strongest and most durable lock.

Considering all the features and pricing, the best option for most people would probably be the Crystal Vision SHBLA Anti-theft Bike Alarm. It is not the most expensive alarm, but it is also not the cheapest. It emits the loudest alarm (130dB) and is waterproof, long-lasting, strong, durable, and reliable.

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