Best Steel Bike Locks of 2025

The Sportneer Bike Lock Set with 5 Ft Security Steel Cable is a sturdy and durable lock set made with high-quality alloy steel, covered in a silicone cover to protect from wear and tear. It comes with an additional 5 ft double-looped steel cable for added security, and is portable enough to carry around with ease. The lock cylinder is made of zinc alloy and includes 2 rust-resistant keys with advanced serpentine slots for added safety and security. Note that no lock is 100% safe, so avoid leaving your bike in high-crime areas or unattended outdoors for long periods of time.

The Sportneer Bike U-Lock offers a combination of portability and durability, making it an excellent choice for securing your bicycle. Weighing just 2.5 lbs, its compact size makes it easy to carry. The lock features a sturdy 6ft steel cable and a mounting bracket, allowing you to quickly secure your bike to various objects. With its robust design, the U-lock can withstand significant force, protecting against theft attempts. Additionally, it comes with two keys, ensuring you have a spare handy in case you misplace one, enhancing your convenience and peace of mind.

The SIGTUNA Folding Bike Lock is a durable and high-performance bike lock made of hardened ABS steel bars and rivets, providing maximum security against leverage attacks. This fold-up lock is easy to use and comes with a soft-touch coating, silicone lock body cover, and easy-to-mount bracket. SIGTUNA offers a 100% money-back guarantee, ensuring customer satisfaction. Buy now and protect your bike or electric bike from theft!

The Master Lock U-Lock Bike Lock is a heavy-duty outdoor bike lock with a hardened steel body and double locking shackle for superior cutting and prying resistance. It features a 6-1/8 in. (16 cm) wide body, 8 in. (20 cm) shackle length, 4 in. (10 cm) width and 1/2 in. (13 mm) diameter, and includes a carrier bracket for easy transportation. It also has a disc key for additional anti-pick protection and a vinyl coating for weather and scratch resistance.

The NDakter U-Lock offers robust security for your bicycles and electric vehicles. With its heavy-duty 18mm hardened steel shackle and a 6FT steel cable, you can confidently lock up your e-bike or scooter, knowing it’s well-protected against theft. The ergonomic design and double deadbolt mechanism ensure that it’s easy to use while providing added protection against tampering. Plus, the high-quality zinc alloy lock cylinder prevents dust blockage, making it reliable for everyday use. This U-Lock is perfect for securing multiple bikes or outdoor equipment, giving you peace of mind wherever you go.

The Master Lock Bike Lock offers exceptional security for your bicycle or electric scooter. Its hardened steel links are designed to withstand cutting, sawing, and prying, ensuring that your ride remains safe. The anti-pry link rivets further enhance its resistance against theft, giving you confidence while you’re parked. Additionally, the lock’s protective vinyl cover not only adds weather resistance but also prevents scratches, keeping your lock looking new. For your convenience, it comes with a Velcro strapped carrier bracket, making it easy to store when not in use.

The INTEKIN Bike Chain Lock is a heavy duty, anti-theft bicycle lock made of 8mm/0.32inch heat treatment hardening high carbon structural steel square link. It is resistant to cutting, breaking, and shearing, making it perfect for protecting your bicycle, motorcycle, and other valuables. The lock cylinder is made of zinc alloy blade and has a precise structure to prevent technical opening. The lock comes with 3 keys and a flexible protective cloth sleeve to prevent scratches. It is portable and suitable for a wide range of applications, including gates, fences, and more.

The APECYC Bike Lock offers robust security for your bicycles and other vehicles. Its 6mm thick hardened steel chains make it difficult to cut or break, ensuring peace of mind when locking up. The durable zinc alloy cylinder enhances security, eliminating the need for keys. With a generous 120 cm length, you can easily secure multiple bikes or a bike and motorcycle together. Setting your own combination is simple, allowing you to customize your lock for convenience and added safety.

The Kryptonite Bike Lock Cable is a durable 12mm braided steel cable lock that protects your bike from theft. Its 6ft length makes it multi-functional to secure not only bicycles but also sports equipment, gates, fences, tool boxes, and more. Its key safe program allows customers to receive two free keys globally and register their unique key code on the company's website. The cable lock comes with a mounting bracket for easy transportation. Kryptonite offers a lifetime warranty and customer service to ensure full satisfaction.

The NDakter U Lock is a heavy-duty bike lock that offers excellent anti-theft performance. Made of hardened high-performance alloy steel, the 14.6mm diameter U lock is resistant to cutting and leverage attacks, providing enough strength and security for your bike, electric scooter, motorcycle, gate, or door. The lock head is made of zinc alloy for added durability. The included 12mm x 1.5m steel cable allows for multiple locking options and provides solid security in any location. With its 4-digit resettable combination, you can enjoy keyless convenience and never worry about losing or disconnecting your keys. The U lock has a larger interior locking space compared to other locks, providing more versatility and allowing you to lock multiple items. In addition, the lock and cable are easy to carry and store, making it perfect for on-the-go use. The NDakter U Lock is suitable for a wide range of applications and is a reliable choice for keeping your belongings safe and secure.