Best Alarm Bike Chain Locks of 2026

The Sportneer Bicycle Chain Lock is a 5-digit resettable combination anti-theft bike lock made from extra thick manganese steel for cut resistance and protective zinc-plated coating. It is 3.2 feet long, ideal for bicycles, bike, ladders, lawnmowers, gates, fences, tool boxes, bbq, sport equipments and more. It is keyless secure lock mechanism with up to 100,000 possible codes, making it nearly impossible to crack. It is also waterproof and dustproof with a flexible cloth sleeve which covers the chains to protect it from being scratched and sawed.

Titanker Bike Chain Lock is a heavy-duty anti-theft bicycle chain lock made of 6mm thick security heavy-duty steel chain links. It comes with a protective cloth sleeve and dust cover to protect the chain from rust and scratches. The overall length of the chain lock is about 3 feet and the lock weight is 1.4 pounds. Ideal for bicycles, ladders, lawnmowers, stroller, scooter, fences, tool boxes, sport equipment and etc.

The Kryptonite Keeper 785 Integrated Bicycle Lock Chain comes in three new colors and is made from 7mm four-sided chain links using 3T MANGANESE STEEL, with a patent-pending END LINK DESIGN that secures the chain to a hardened deadbolt, eliminating critical vulnerability. It features a hardened DEADBOLT DEDSIGN for extra holding power, and a HIGH SECURITY DISC-STYLE CYLINDER that is pick and drill resistant. The lock also comes with 2 NEW ERGONOMIC "I" KEYS and a durable WEATHER-RESISTANT nylon sleeve to prevent scratches. The chain length is 33.5” (85cm).

The Titanker Bike Chain Lock is a heavy-duty and high-quality security lock made of cut-resistant steel, available in 6mm, 8mm, and 10mm chain thickness options. It comes with 2 keys, a protective cloth sleeve, and a dust cover. The lock is about 3.3 feet long and weighs 2.5 pounds, making it portable and easy to carry. Remember to lubricate the lock and never leave your bike locked outside for long periods of time.

The Kryptonite Keeper 712 Integrated Chain Lock is a high-security bike lock with 7mm four-sided chain links made from 3t manganese steel. Its patent-pending end link design secures the chain to a hardened deadbolt, providing extra holding power and eliminating critical vulnerability. The disc-style cylinder is pick and drill resistant, while the weather-resistant nylon sleeve protects the chain against scratches and the elements. With a 48-inch (120cm) chain length, it is a flexible, compact, and easy-to-use deterrent security.

The Seatylock FoldyLock Bike Lock offers a lightweight and compact design, making it easy for you to carry and protect your bike wherever you go. Its strong construction resists bolt cutters, drills, and saws, giving you reliable security in urban environments. With a 3-year warranty, this lock provides durable protection against tampering and harsh weather, so you can trust it to keep your bike safe. The lock comes with keys and a carrying case for convenience, and its flexible foldable design fits around bike stands, racks, or bars easily. Plus, the included frame mount ensures a quiet, rattle-free ride when you’re on the move.

The Kryptonite Evolution 1090 Bike Chain Lock features a new patent-pending design that secures the chain to a hardened deadbolt, eliminating any weak links due to the extensive holding power of the link itself against attacks. The 10mm six-sided chain links are made of 3t manganese steel, and the high security disc-style cylinder is pick and drill resistant. The weather-resistant nylon sleeve prevents scratches, and the compact coiling makes it easy to carry. The lock comes with 3 stainless steel keys, including one with a high-intensity LED bulb for easy unlocking in the dark.

Stay worry-free with the Weogine Chain Lock. Its 4mm thick alloy steel chain is anti-drilling and anti-cutting, making it tough for thieves. The lock's zinc alloy cylinder is weather-resistant. Snap it together without keys for quick locking. The high-quality protective cover keeps it scratch-resistant and waterproof, safeguarding your bike chain. With a length of 2.72 ft, it can secure multiple items, from bikes to gates. Plus, enjoy 24/7 customer service and a 1-year warranty.

The NDakter Bike Chain Lock is a heavy-duty, 5-digit combination lock that provides excellent security for your bike, scooter, motorcycle, or other valuable items. The lock cylinder is made of zinc alloy, making it hard to break through, while the 0.27 inch alloy steel chain is drill-resistant and anti-tech unlocking. The lock is wrapped in scratch-proof polypropylene fabric, which protects the chain and prevents it from scratching your bike frame. With a code design, you don't have to worry about carrying keys, and the lock is resettable with 10,000 possible combinations. The chain is 3.2 feet long, making it suitable for locking multiple bikes together or securing your bike to a tree, gate, fence, or other fixed object. NDakter provides a one-year warranty, and the lock is backed by excellent customer reviews.

The Kryptonite Keeper 712 Bike Chain Lock features an end link locking point that provides extensive holding power. The 4-sided 3t manganese steel chain links offer added strength and security. The lock also has a 4 digit resettable combination with over 10,000 codes to choose from, ensuring that your bike remains safe and secure.