10 Best Bike Locks 2025 in the United States

The Master Lock Cable Lock is a versatile bike lock suited for both indoor and outdoor use. It features a 6-foot long, 1/2 inch diameter cable made from braided steel, which provides a good balance of strength and flexibility. The lock's adjustable mechanism allows the cable to hold tight at any desired length, accommodating various locking scenarios from bicycles to ATVs, grills, and lawn mowers. This flexibility makes it a practical choice for those who need a multi-purpose lock.

The combination lock mechanism offers keyless convenience and the flexibility to set your own code, adding to its ease of use. The cable is vinyl-coated to prevent scratches and enhance weather resistance, making it durable in different weather conditions. The rust-resistant lock and vinyl-coated cable contribute to its longevity.

Its weight and size (8 x 5.8 x 1.1 inches) are manageable, but those looking for ultra-lightweight options might find it slightly bulky. This lock is ideal for users seeking a flexible and easy-to-use bike lock with moderate security needs and good weather resistance.

The NDakter Bike Chain Lock is a solid choice for cyclists looking for a convenient and moderately strong way to secure their bikes. It uses a 5-digit combination lock, giving you 10,000 possible code combinations, which is safer than the more common 4-digit locks. This also means you don’t have to worry about carrying a key and can reset the code easily if needed.

Made from 6mm thick alloy steel with a zinc alloy lock cylinder, it offers good resistance to cutting and picking attempts, making it a heavy-duty option for everyday bike security. The chain is 3.2 feet long and weighs about 1.45 pounds, allowing you to lock a couple of bikes together or secure your bike to thicker poles, fences, or gates. Its protective polypropylene fabric cover prevents scratching your bike’s frame and helps with comfort when handling the chain, even in hot or cold weather.

The lock head's size—about 1.25 inches in diameter—means it might not fit through smaller wheel gaps on some scooters or e-bikes, so locking around the frame may be necessary. The lock is weather-resistant and built for outdoor use, but no lock is completely theft-proof, so keeping your bike in sight whenever possible is wise. This chain lock effectively balances security, ease of use, and portability, making it especially suitable for riders who want a keyless, resettable lock that can handle multiple types of bikes and outdoor conditions.

The Sportneer Bike Lock is a sturdy U-lock combined with a 5-foot steel cable, designed to offer strong protection for various types of bikes including road, mountain, electric, and folding bikes. Its 17mm thick alloy steel shackle and zinc alloy lock core make it resistant to cutting, sawing, and drilling, providing solid security against theft attempts. The lock weighs about 2.86 pounds and measures roughly 7.8 by 5 inches, which is a good balance between security and portability.

The included bracket fits bike frames between 1 to 1.5 inches in diameter, making it relatively easy to carry and install on most bikes. The key lock mechanism is straightforward, and having two keys included reduces the risk of being locked out. While the silicone coating helps protect the bike from scratches and offers some weather resistance by keeping out dust and water, the lock is still made of metal and may require occasional care to prevent rust over time. The 5-foot cable adds flexibility in locking options but may not be as secure as the U-lock itself.

This lock is an excellent choice for cyclists seeking a reliable and heavy-duty option without complicated features, especially if you want the convenience of both a solid U-lock and cable. For those prioritizing ultra-lightweight or high-tech locks, this model might feel somewhat bulky or basic.