10 Best Bicycle Locks 2026 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 OnGuard RockSolid U-Lock stands out as a strong choice for anyone needing a reliable lock for their bicycle or motorcycle. One of its greatest strengths is its angle grinder resistance, which is increasingly important for theft protection in urban areas. The X4P locking mechanism enhances security by securing the shackle at four points, making it very difficult for thieves to use common tools to break it. With a 14mm steel shackle, it offers impressive durability against cutting and sawing attempts, ensuring that your bike stays safe.

Weighing just 3 pounds, it's also lightweight, making it easy to transport without adding bulk to your gear. This portability is a big plus for commuters or individuals who may need to carry their lock with them. Additionally, it comes with five keys, which is a generous feature, considering that losing a key can end up being a headache.

There are a few drawbacks to consider. While the lock is designed to be lightweight, some users may find it a bit heavier compared to cheaper, less secure options. Also, while it has a high security rating, no lock is entirely foolproof, and determined thieves may still find ways around it. The lifetime warranty is a nice touch, but it's dependent on the registration and may not be available in all areas for the anti-theft protection feature.