10 Best Bicycle Locks 2025 in the United States

The Seatylock FoldyLock Compact Folding Bike Locks come as a set of two matching locks with six identical keys, which is great for families or couples who want convenient key sharing. These locks use a patented folding design made from hardened steel covered with tough nylon and glass fibers that protect against cutting and weather damage. The multi-locking system and reinforced rivets make it very difficult for thieves to break, offering a strong security rating comparable to a Sold Secure Silver level.

Despite their heavy-duty security, these locks are surprisingly lightweight at about 2.2 pounds each and compact enough to carry easily with included quiet mounting brackets that prevent rattling during rides. The locks measure roughly 33.5 inches in circumference, allowing flexible use to secure your bike to various objects. They are also waterproof, corrosion-resistant, and built to withstand impact and drilling attempts.

While folding locks generally offer less length than cable or chain locks, which might limit locking options in some environments, this set strikes a balance of strong protection, convenience, and style. It avoids the bulk and vulnerability of typical cable locks, making it a smart choice for urban cyclists and e-bike owners, though the combined weight and size might be somewhat heavy for those seeking ultra-light gear.

The Seatylock FoldyLock Forever Folding Bike Lock Set is designed for people wanting strong and reliable bike security, particularly in urban or outdoor settings. These locks use a patented folding design made from hardened steel plates covered with nylon and glass fibers, which makes them highly resistant to cutting, drilling, and weather damage. The set includes two matching locks and six identical keys, which is great for couples or families who want to secure multiple bikes with just one set of keys. Both locks come with mounting cases and straps for easy attachment to your bike frame, and their hexagonal shape helps reduce noise and rattling while riding.

With an 18/18 security rating (Sold Secure Gold), this lock set offers one of the highest levels of protection against theft, making it suitable for electric bikes, mountain bikes, and regular city bikes. The locks are also waterproof and impact resistant, so they stand up well to various weather conditions and rough use. The 35.4-inch length provides enough flexibility to secure your bike to a wide range of objects.

The locks weigh nearly 4 pounds combined, which adds some bulk and might feel heavy for riders who prioritize ultra-light gear. While the folding mechanism is compact and portable, it might still be less convenient than simpler cable locks for quick stops. Despite the high security, no lock is completely theft-proof, so combining it with other security methods is always a good idea. This set offers a durable, high-security locking solution that’s weatherproof and comes in a convenient two-pack with shared keys, making it especially useful for those who need to lock multiple bikes securely and prefer a quiet, rattle-free locking experience during rides.

The Hiplok Z LOK is a lightweight bike lock that stands out mainly for its portability and convenience. Weighing only 20 grams, including the key, it’s one of the lightest locks you can carry. Its flexible design uses a toughened nylon outer layer with a reinforced steel core, providing a reasonable balance between flexibility and security. The lock uses a key mechanism, which is straightforward and reliable for most users.

With a 40 cm locking diameter, it’s best suited for securing smaller parts of your bike or locking it to thin posts or railings. The multiuse, reusable zip-like design means it can be wrapped and secured quickly, making it handy for short stops or low-risk environments. The alloy steel material offers decent durability, but this lock is not as robust as heavier, thicker U-locks or chains – so it’s less ideal if you need maximum protection in high-theft areas.

In terms of size, the lock is compact and slim (around 16.5 inches long and less than an inch wide), making it easy to store or carry without adding bulk. The powder-coated finish helps protect it from weather damage. If you prioritize a lightweight, easy-to-use lock for quick, low-risk locking, the Hiplok Z LOK fits well. However, if you need high security for leaving your bike unattended for long periods or in risky locations, this lock might not provide enough protection. It’s a good choice as a secondary or travel lock, especially for cyclists who want something minimal and flexible rather than heavy and rigid.