Best Anti-Theft Alarm Bike Locks of 2025

The Bluetooth Smart Bike Lock is a convenient way to secure your bike or other valuable items. The lock connects to your phone via Bluetooth, eliminating the need for keys or combinations. It features an alarm that triggers at 110db in response to vibrations, breakage, disassembly, or cable clipping, deterring potential thieves. The cable is made of 7 braided steel and covered in rust-protective vinyl, making it difficult to cut. It is waterproof and operates in temperatures ranging from -14 to 140 Fahrenheit. The lock requires 3 "AAA" batteries, which last up to 5 months with daily use.

The ENZZONE U-Lock Alarm is a heavy-duty anti-theft device designed for E-bikes, scooters, and motorcycles. Its 16mm hardened steel construction ensures maximum security, resisting hand tools, bolt cutters, and leverage attacks. The 120db audible alarm, activated by motion, provides security and peace of mind when your valuable possession is out of sight but within hearing range. With an opening to fit wide tire wheels, this lock is ideal for various vehicles. Additionally, it comes with three sets of keys for your convenience.

This bike lock features a 130db alarm, heavy-duty material, weatherproof design, and multi-purpose use. The alarm is particularly useful in deterring thieves and alerting you in case of theft attempts. The heavy-duty material ensures the lock can withstand physical attacks, while the weatherproof design allows it to be used in different weather conditions. The multi-purpose use means you can use it for different types of bikes and other purposes.

Mengshen Remote Bike Lock offers two convenient ways to lock and unlock - through a remote control or a password. You can secure your bike with a 4-digit password or by using the remote control within a 40-meter range. It functions not only as a lock but also as an anti-theft alarm, emitting a loud 115dB sound when any movement or tampering is detected. The lock is IP55 waterproof, ensuring durability in various weather conditions. Additionally, it features a low battery alert system, so you'll never be caught off guard.

The Blackstone Anti-Theft 130 db Alarm U-Lock Heavy Duty w/ Security Cable is a bike lock with a 14mm thick, 254 mm x 83mm U shackle and a 10mm x 120cm cable for locking your bike and wheels quickly and easily. Its 130db loud alarm system automatically activates upon sensing any vibration or shock and is loud enough to scare off thieves. Additionally, it comes with a 52-inch double-looped steel cable and 3 keys, including a key replacement code card.

The AKM Safe 80db Alarm Motorcycle Chain Lock is a heavy-duty, weatherproof lock designed to keep your bike, scooter, or moped safe from theft. It features a loud 80db alarm that is triggered by vibrations, as well as a strong, cut-resistant square link chain made from triple-heat-treated manganese steel. The lock comes with three double row serpentine slot keys made from durable stainless steel, and the batteries are replaceable. It is long enough to lock two motorcycles together and comes with a premium bag, screwdriver, and carry box for easy transport.

Rosvola Bike Lock Y787 is a smart alarm lock with anti-theft features. It alarms loudly when tampered with, protecting your belongings effectively. The lock acts as an anti-whip and offers a smart four-digit password system for easy access. With IP44 waterproof certification, it is suitable for both indoor and outdoor use, even in harsh weather conditions. This lock is versatile and can be used for motorcycles, doors, and outdoor furniture, providing a high level of security and convenience.

The Blackstone Alarm U-Lock is designed to keep your bike safe with its sturdy 14mm thick shackle. It features a unique 130 dB alarm system that activates when it detects vibrations or shocks, effectively deterring potential thieves. This loud alarm ensures that you can feel secure leaving your bike unattended. Additionally, the lock comes with three keys and a CR2 lithium battery, making it convenient for everyday use. With its compact size of 254 mm x 83 mm, this U-lock is easy to carry, allowing you to lock and go without hassle.

The VINGVO Smart Alarm Lock offers robust security for your bicycle, motorcycle, or scooter. It features an alarm that triggers if the lock is tampered with, ensuring immediate protection against theft. You can also enjoy peace of mind with its long standby time, lasting up to eight months on low power. The high-quality materials used in this lock make it waterproof and durable, suitable for various weather conditions. Additionally, the thickened steel wire rope provides extra strength, making it a reliable choice for securing your valuables in shops, offices, or outdoor settings.

The ONVIAN Motorcycle Lock offers a range of features designed to enhance your security. It is rechargeable, allowing you to power it up in just 1-1.5 hours for months of use, eliminating the hassle of replacing batteries. The heavy-duty design includes a 6FT anti-theft cable made from high tensile steel, which secures your motorcycle or e-bike effectively. With a built-in alarm that reacts to vibrations, you'll be alerted to any potential tampering. Additionally, a rest mode lets you use the lock without sound, providing discreet protection when needed.