10 Best Bicycle Locks 2025 in the United States

The Master Lock Cable Lock is a versatile option for securing bicycles, ATVs, grills, and lawn mowers both indoors and outdoors. It features a 6-foot long, braided steel cable that offers strength and flexibility, with a vinyl coating to prevent scratches and resist rust. The patented adjustable locking mechanism allows you to secure the cable tightly at any length from 6 inches to 6 feet, adding to its versatility.

Additionally, the lock employs a 4-dial combination, eliminating the need for keys and providing resettable security. The cable’s 5/16-inch diameter and dimensions (8 x 5.8 x 1.1 inches) make it relatively lightweight and easy to handle. However, while the braided steel construction offers decent security, it may not be as robust as other high-security locks, making it more suitable for low to moderate-risk areas.

The simplicity of a combination lock might not deter determined thieves as effectively as more complex locking mechanisms. This lock is ideal for users looking for a flexible, easy-to-use option that offers convenience and moderate security for a variety of items.

The NDakter Bike Chain Lock is a combination lock offering a 5-digit resettable mechanism, which enhances security compared to typical 4-digit locks. This is a useful feature for those who want to personalize their code, reducing the risk of theft through guessing. The lock is constructed with alloy steel and zinc, providing durability and resistance to drills and tampering, making it suitable for various outdoor conditions. Wrapped in a scratch-proof fabric, it ensures protection from both physical damage to the lock itself and potential scratches to your bike frame.

Weighing 1.45 pounds with a length of 3.2 feet, the lock offers versatility, allowing users to secure multiple bikes or attach them to larger objects like trees or gates. Its portability suits those who need a lock for diverse items, including scooters and motorcycles. However, it's important to note the limitation regarding wheel gaps or holes smaller than 1.25 inches, as the lock may not fit through these.

While the lock provides substantial security, it's crucial to remain cautious in high-crime areas, as no lock can guarantee complete protection. The absence of a key eliminates the worry of losing it, but users should keep their combination in mind to avoid lockouts. The NDakter Lock ranks high in customer satisfaction, evidenced by its positive reviews and popular status among bike chain locks. It’s ideal for individuals seeking a sturdy, versatile, and user-friendly locking solution for a range of outdoor equipment.

The Seatylock FoldyLock Compact Folding Bike Lock is designed for cyclists seeking a blend of security and portability. Its patented folding mechanism and compact size make it a convenient choice for urban riders who need to secure their bicycles in various environments. Weighing 2.2 pounds, it strikes a balance between being lightweight and robust. The use of hardened steel covered with nylon and glass fibers ensures durability against theft attempts, including bolt cutters and drills. This lock provides a 33.5-inch circumference when unfolded, sufficient for securing a bike to most stands or racks.

Strengths of this lock include its high-security rating, bolstered by anti-tamper rivets and a weatherproof design, making it suitable for varied weather conditions. The lock’s quiet operation and easy installation add to its user-friendly nature. The product comes with a three-year warranty, providing peace of mind regarding potential defects. Its design has been recognized with a European Design Award in 2020, underscoring its innovative approach.

However, some might find the 33.5-inch circumference limiting for certain locking scenarios, particularly if needing to secure both wheels and frame simultaneously to a fixed object. Additionally, while the lock is portable, carrying it on smaller frames might be cumbersome despite the included mounting case. The use of keys instead of a combination mechanism might be less convenient for some users who prefer not to carry extra items.

This lock is best suited for city cyclists who prioritize security without sacrificing portability. It offers a solid protection level for standard use and is particularly appealing due to its lightweight design and strong build, though it might not cater to those needing extra-long locks or keyless entry solutions.