10 Best Bike Locks With Keys 2025 in the United States

The Master Lock 8170D is a solid choice if you want a key-operated U-lock for your bike. Its lock type is a sturdy key lock, offering reliable security with two keys included. The lock’s body is made of hardened alloy steel, which makes it tough against cutting and prying attempts. With a shackle thickness of about 1/2 inch (13 mm) and an 8-inch length, it strikes a good balance between strength and flexibility, allowing you to secure your bike to various objects while still being manageable in size. The lock body measures just over 6 inches wide, which fits most bike frames well. It also has a vinyl coating to protect your bike’s paint from scratches.

Portability is addressed by the included carrier bracket, making it easy to attach the lock to your bike for transport. Weighing around 2 pounds, it’s on the heavier side compared to cable locks but expected for this level of security. A small downside is that the shackle’s length might be limiting if you want to lock your bike to larger or awkwardly shaped posts.

This lock suits riders who prioritize strong, reliable protection and don’t mind carrying a bit of extra weight. Its heavy-duty design and positive customer reviews suggest it’s a dependable option for everyday bike security.

The Kryptonite Evolution Mini-7 Bike U-Lock with Cable is a robust option for cyclists seeking high security for their bikes. Made from hardened max-performance steel, the 13mm shackle resists bolt cutters and twisting attacks, ensuring strong protection. The lock’s disc-style cylinder is pick and drill resistant, adding an extra layer of security.

The included 4ft, 10mm thick steel looped cable provides additional security for securing wheels or accessories, making it versatile for various uses, including securing sports equipment and gates. It also comes with a FlexFrame U-bracket for easy and secure mounting to your bike frame, enabling hassle-free transport without needing an additional bag or backpack.

The package includes three stainless steel keys with an ergonomic design, ensuring ease of use. The lock's size is compact and portable, measuring 3.25 x 7 inches internally and weighing 3.55 lbs. Additionally, Kryptonite offers an optional Anti-Theft Protection Offer (ATPO) with up to $2,500 coverage for registered locks, providing peace of mind. One notable drawback is the weight, which might be considered heavy for some users. However, the limited lifetime warranty indicates reliability and customer satisfaction. This bike lock is highly suited for cyclists who prioritize security and durability over portability, offering a solid investment for protecting your bike and accessories.

The Kryptonite Keeper 785 Bike Chain Lock is a robust option for securing your bike, motorcycle, scooter, door, gate, or fence. Crafted from 7mm hardened steel with four-sided links, it offers strong resistance against cutting and leverage attacks, making it a reliable choice for moderate security. It uses a high-security disc-style cylinder resistant to picking and drilling, and the patented end link design further enhances its security by eliminating weak points.

The lock comes with a durable rubber coating and a weather-resistant nylon sleeve to prevent scratches and withstand wear and tear, ensuring long-lasting protection for your bike. The chain extends up to 33.5 inches, providing ample length to secure your bike to various fixtures, and it weighs 3.50 lbs, making it relatively portable for its size and strength. This lock includes two keys and offers a Key Safe Program, which ensures you can get replacement keys easily if lost.

Additionally, it is eligible for Kryptonite’s Anti-Theft Protection Offer (ATPO) up to $500 coverage for registered locks and comes with a limited lifetime warranty, offering peace of mind and customer support. However, the lock is rated 5/10 on Kryptonite's security scale, which means it is suitable for moderate security but may not be the best choice for high-crime areas. Its weight could also be a drawback for some users as it adds extra weight to carry around. Despite these minor cons, the Kryptonite Keeper 785 is a durable and secure option for those seeking reliable bike protection.