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10 Best Bike Chain Locks 2025 in the United States
#1
Winner
Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Red, 33.5 Inch
The Kryptonite Keeper 785 Bike Chain Lock is a strong contender for those seeking a sturdy bike-chain-lock. Made from 7mm hardened steel, the chain is particularly robust, providing good resistance to cutting and leverage attacks. This makes it suitable for moderate security needs, especially in areas where theft is a concern but not a high risk. The chain is 2.8 feet long, which might be slightly limiting for those needing to secure larger bikes or multiple items. The weight of approximately 2.9 pounds might be a downside for those prioritizing portability.
Rating
10.0
Chosen by1,281
Chain Thickness
Weight
Most important from
10826 reviews
#2
Sportneer 5 Digit Combination High Security Anti Theft Bike Chain Lock - 3.2/3.6/4ft Heavy Duty Resettable Keyless Bicycle Lock for Bike, Motorcycle, Scooter, Door & Gate - 6mm Thick
The Sportneer 5 Digit Combination Bike Chain Lock is designed to offer strong protection for your bike with a keyless, easy-to-use combination mechanism. Its 6mm thick alloy steel chain is tough enough to resist cutting and sawing attempts, making it a solid choice if security is your top priority. The 3.2-foot length is convenient for locking two bikes together or securing your bike to a fixed object, though it might be a bit short if you need to lock around larger structures.
Rating
9.7
Material
Chain Thickness
Length
Most important from
11426 reviews
#3
Kryptonite Evolution 1090 Bike Chain Lock, 3 Feet Long 10mm Steel Chain Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence
The Kryptonite Evolution Mini Bike Chain Lock is a robust and reliable option for securing bicycles, motorcycles, and more. It features a heavy-duty 10mm hardened steel chain with six-sided links, offering high resistance to cutting and leverage attacks. The patented locking system includes a reinforced oval crossbar lock head and a high-security disc-style cylinder that's resistant to picking and drilling.
Rating
9.7
Chain Thickness
Length
Locking Mechanism
Most important from
4941 reviews
Top 10 Best Bike Chain Locks 2025 in the United States
#1
Winner
Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Red, 33.5 Inch
Kryptonite Keeper 785 Bike Chain Lock, 2.8 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Red, 33.5 Inch
Material: 7mm hardened steel
Chain Thickness: 7mm
Length: 2.8 feet
Locking Mechanism: patented disc-style cylinder
Weight: 2.9 pounds
Weather Resistance: rubber coating and nylon sleeve
Chosen by 1281 this week
Sportneer 5 Digit Combination High Security Anti Theft Bike Chain Lock - 3.2/3.6/4ft Heavy Duty Resettable Keyless Bicycle Lock for Bike, Motorcycle, Scooter, Door & Gate - 6mm Thick
Sportneer 5 Digit Combination High Security Anti Theft Bike Chain Lock - 3.2/3.6/4ft Heavy Duty Resettable Keyless Bicycle Lock for Bike, Motorcycle, Scooter, Door & Gate - 6mm Thick
Material: Alloy Steel
Chain Thickness: 6mm
Length: 3.2ft
Locking Mechanism: Combination Lock
Weight: 0.73 kg
Weather Resistance: Waterproof
Kryptonite Evolution 1090 Bike Chain Lock, 3 Feet Long 10mm Steel Chain Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence
Kryptonite Evolution 1090 Bike Chain Lock, 3 Feet Long 10mm Steel Chain Heavy Duty Anti-Theft Sold Secure Gold Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence
Material: Plastic
Chain Thickness: 10mm
Length: 3 feet
Locking Mechanism: Reinforced oval lock, high-security cylinder
Weight: 6.09 pounds
Weather Resistance: Weather-resistant nylon sleeve
Kryptonite New York FAHGETTABOUDIT 1410 Bike Chain Lock, 3.28 Feet Long 14mm Steel Chain Heavy Duty Anti-Theft Bicycle Chain Lock with Keys, 10/10 Security Rating for E-Bike, Motorcycle, Scooter
Kryptonite New York FAHGETTABOUDIT 1410 Bike Chain Lock, 3.28 Feet Long 14mm Steel Chain Heavy Duty Anti-Theft Bicycle Chain Lock with Keys, 10/10 Security Rating for E-Bike, Motorcycle, Scooter
Material: Triple heat-treated boron manganese steel
Chain Thickness: 14mm
Length: 39.37 inches
Locking Mechanism: New York disc lock with 15mm shackle
Weight: 15.25 pounds
Kryptonite Keeper 712 Bike Chain Lock, 4 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Black
Kryptonite Keeper 712 Bike Chain Lock, 4 Feet Long Heavy Duty Anti-Theft Bicycle Chain Lock with Keys for Bike, Motorcycle, Scooter, Bicycle, Door, Gate, Fence,Black
Material: 7mm hardened steel
Chain Thickness: 7mm
Length: 120cm
Locking Mechanism: disc-style cylinder
Weight: 1.70kg
Weather Resistance: nylon sleeve
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Up to 11% off
ABUS Hardened Steel 8KS 6 Foot x 5/16" Thick Square Security Chain for Bikes, Containers, Trailers, ATV's, Motorcycles and Personal/Industrial Property
ABUS Hardened Steel 8KS 6 Foot x 5/16" Thick Square Security Chain for Bikes, Containers, Trailers, ATV's, Motorcycles and Personal/Industrial Property
Material: hardened alloy steel, special coating
Chain Thickness: 5/16 inch
Length: 6 feet
Locking Mechanism: Combination and Key Lock
Weight: 6 pounds
Weather Resistance: corrosion resistant, outdoor use
#10
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Buying Guide for the Best Bike Chain Locks
Choosing the right bike chain lock is crucial for ensuring the security of your bicycle. A good bike lock can deter thieves and give you peace of mind when leaving your bike unattended. When selecting a bike chain lock, consider the following key specifications to find the best fit for your needs.MaterialThe material of the bike chain lock is important because it determines the lock's strength and resistance to cutting or breaking. Common materials include hardened steel, titanium, and alloy steel. Hardened steel is very strong and resistant to cutting, making it a popular choice for high-security locks. Titanium is lighter but still offers good strength, while alloy steel provides a balance between strength and weight. Choose a material based on the level of security you need and how much weight you are willing to carry.
Chain ThicknessChain thickness refers to the diameter of the individual links in the chain. Thicker chains are generally more resistant to cutting and sawing. Chain thickness typically ranges from 7mm to 12mm or more. For high-risk areas, a thicker chain (10mm or more) is recommended, as it provides better security. For lower-risk areas or if you need a lighter lock, a thinner chain (7-9mm) may suffice. Consider the level of security you need and the convenience of carrying the lock when choosing the chain thickness.
LengthThe length of the bike chain lock determines how easily you can secure your bike to various objects. Longer chains offer more flexibility in terms of where you can lock your bike, but they are also heavier and bulkier to carry. Chain lengths typically range from 60cm to 150cm or more. If you often lock your bike in different locations, a longer chain (100cm or more) may be more convenient. For consistent locking spots, a shorter chain (60-90cm) might be sufficient and easier to manage.
Locking MechanismThe locking mechanism is the part of the lock that secures the chain and prevents it from being opened without the key or combination. Common types include key locks, combination locks, and integrated locks. Key locks offer high security but require you to keep track of the key. Combination locks are convenient as you don't need a key, but they may be less secure if the combination is easy to guess. Integrated locks combine the chain and lock into one unit, offering convenience and security. Choose a locking mechanism based on your preference for convenience and security.
WeightThe weight of the bike chain lock is important for portability and ease of use. Heavier locks are generally more secure but can be cumbersome to carry around. Lighter locks are easier to transport but may offer less security. Weights can range from under 1kg to over 3kg. If you need to carry the lock frequently, consider a lighter option that still provides adequate security. If the lock will mostly stay in one place, a heavier, more secure lock might be a better choice.
Weather ResistanceWeather resistance refers to the lock's ability to withstand exposure to the elements without rusting or deteriorating. Locks with weather-resistant coatings or materials are better suited for outdoor use. Look for locks that are advertised as weather-resistant or have protective coverings over the chain and lock mechanism. If you plan to leave your bike locked outside frequently, a weather-resistant lock is essential to ensure longevity and reliability.