10 Best Alarm Bike Locks to Buy in 2025 | Buying Guide

Secure, weatherproof lock for bikes with 80db alarm and heavy-duty chain.

The AKM Heavy Duty Motorcycle Lock is a robust and durable security device, ideal for bikes, bicycles, scooters, and mopeds. The lock features an 80db alarm, a 4ft/120cm long chain made of 3/8''/10mm thick weatherproof material, and comes with three customized keys.

Sportneer's U-lock bike lock with heavy-duty steel cable and mounting bracket.

This robust bike lock from Sportneer comes with a 6ft security steel cable and an 18mm shackle to ensure maximum security for your bike. Its U-lock design is coupled with keys and a sturdy mounting bracket making it suitable for road and mountain bikes. The size of the lock is 11.5''x6.25''.

Heavy duty 4ft bike chain lock with integrated alarm system and USB C charging.

This is a robust and secure 4ft long bike chain lock that integrates a 110dB alarm system for additional security. The lock comes with a USB C cable for easy charging and includes three keys for convenience. Ideal for securing bikes, e-scooters, and motorcycles, it provides a multi-level security solution.

A durable, resettable cable lock with a mounting bracket for ebikes and motorcycles.

The Ebike Resettable Cable Lock is a sturdy, 4-foot lock designed for electric bikes, scooters, and motorcycles. It is equipped with a mounting bracket and features a resettable combination for enhanced security.

Heavy-duty combination U-lock for enhanced bicycle and scooter security.

The USHAKE Bike Combination U Lock is a robust bicycle defense mechanism perfect for securing bikes, electric scooters, motorcycles, metal fences, and gates. It features a combination lock, eliminating the need for keys, and is constructed from heavy-duty steel, ensuring long-lasting durability and resistance against theft attempts.

Mengshen's wireless, water-resistant alarm lock for bikes and more.

This is a versatile alarm lock from Mengshen that can be used for bikes, motorcycles, doors, fences, gates, scooters, and baby strollers. It comes with a 31-inch cable length, is IP55 waterproof, and includes a remote control for convenience. It's an effective tool for deterring theft and ensuring the safety of your belongings.

Secure, resettable bike lock with a 4-feet cable and mounting bracket.

This is a 4-feet long cable lock designed to keep your bicycle or electric scooter secure. It features a resettable combination and comes with a mounting bracket for easy transportation. The lock is 1/2 inch in diameter, providing a sturdy and reliable security solution for your ride.

Heavy Duty Bike Lock with 5-Digit Resettable Combination | 4.9ft Anti-Theft Chain Lock for Bicycles,

Amazon product: Heavy Duty Bike Lock with 5-Digit Resettable Combination | 4.9ft Anti-Theft Chain Lock for Bicycles, Motorcycles, Doors, Gates, Fences & Grills

Hardened steel bike lock with a secure 5-digit combination system.

This is a robust bike chain lock with a 5-digit combination system, providing enhanced security against theft. It's made of hardened steel square links that can resist cutters and leverage attacks. The lock comes in different lengths (3FT/4FT/5FT) to accommodate various bicycle types and locking scenarios, including e-bikes, motorcycles, and scooters.

Ainiv's portable, resettable combination bike lock offers robust security for your bike and more.

The Ainiv Anti-Theft Bike Lock is a 25-inch cable lock with a 4-digit code, designed to keep your bicycle or scooter secure. The lock is easily portable, and the combination can be reset as needed, offering a high level of security and convenience. It's also suitable for locking up other items such as skateboards, gates, fences and more.