Best 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 Bike Lock is a heavy-duty U-lock made of 16mm hardened stainless steel that can fit wide tire wheels up to 20"x4". It features a 120db audible alarm that is motion activated, providing security and peace of mind for your bike, e-bike, scooter, or motorcycle. The lock resists hand tools, bolt cutters, and leverage attacks. It comes with three sets of keys and a spare sleeve of batteries for your convenience.

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.

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 U Lock is designed to keep your bike and other outdoor gear safe. It features a powerful 130-decibel alarm that activates if someone tries to tamper with it, providing you with immediate alerts to potential theft. This lock is versatile, making it suitable for securing bikes, scooters, and e-bikes. Additionally, it comes with a durable 52-inch double-looped steel cable that allows you to secure multiple items, including your helmet and wheels. Constructed from high-quality 304 stainless steel, this lock ensures long-lasting protection against rust and wear, giving you peace of mind wherever you park.

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.

The ABUS U-Lock with Alarm is a durable and compact bicycle lock that provides high-quality security against theft. Its hardened 12 mm round shackle, made of specially hardened steel, offers superior protection against picking and unlocking with a key. The intelligent alarm function, triggered by "3D position detection," ensures a 100 dB loud alarm is activated only during movements in all three dimensions, preventing false alarms from short vibrations. With a shackle height of 230 mm and a thickness of 14 mm, this lock provides reliable and stable protection for your bicycle. Trust in the name ABUS, known for setting the standards in safety and security.

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.

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.