10 bestBike Locks Testedof August 2025
112M consumers helped this year.
8% off
1
Bike U Lock with Cable - Via Velo Heavy Duty Bicycle U-Lock,14mm Shackle and 10mm x1.8m Cable with Mounting Bracket for Road, Mountain, Electric & Folding Bike
Via Velo
9.7
8% off
2
Sportneer 17mm Heavy Duty Bike U-Lock - High-Security Anti-Theft with 12mm x1.5m Steel Cable, 8''x5'' Compact Design, Includes Mounting Bracket for Mountain/Road/Folding/Electric Bikes
Sportneer
9.4
3
Seatylock FoldyLock Elite Folding Bike Lock - Patented 18/18 High Security Sold Secure Gold Bicycle Lock - Heavy Duty Anti Theft Secure Guard with Keys & Case Mount - 43.3"
Seatylock
9.2
21% off
4
Kryptonite New-U Evolution Mini-7 Heavy Duty Bicycle U Lock with 4’ KryptoFlex Double Loop Bike Cable
Kryptonite
8.9
9% off
5
FoldyLock Compact Folding Bike Lock - Award Winning Patented Lightweight High Security Bicycle Lock - Heavy Duty Anti Theft Smart Secure Guard with Key and Case for Bikes or Scooter - 85 cm
Seatylock
8.6
OtherUp to 9% off
Sportneer Bike Lock, 18mm Heavy Duty Bike U Lock 11.5''x6.25'' Plus Size with 6Ft/1.8M High Security Steel Cable&Adjustable Mounting Bracket&Key Anti Theft Secure Locks for Bikes, E-Bikes, Scooters
Hiplok Dx1000 Anti Angle-Grinder U-Lock Black, One Size
Kryptonite Kryptolok Standard 12.7mm U-Lock Bicycle Lock with FlexFrame-U Bracket & KryptoFlex 410 10mm Looped Bike Security Cable
Kryptonite Combo Bike U-Lock Standard, Anti-Theft Security Bicycle Lock, 12mm Steel Shackle, 4-Digit Resettable Combination U Lock for Scooter Road Mountain Bikes
6
Kryptonite New-U New York Standard Heavy Duty Bicycle U Lock Bike Lock Black/Yellow, 10
Kryptonite
8.3
7
Kryptonite Keeper 712 Integrated Bicycle Chain Lock 48-Inch (120cm)
Kryptonite
8.1
8
Kryptonite Keeper Integrated Chain Bicycle Lock, 32-Inch
Kryptonite
7.8
9
Kryptonite Evolution 4 Integrated Chain Bicycle Lock
Kryptonite
7.5
10
Anti-Theft Folding Bike Lock,Sportneer 2024 New Heavy Duty Bicycle Lock Foldable Hardened Steel Bike Lock Lightweight with Art Security Level 2-95 cm Long with Mounting Case and 3 Keys
Sportneer
7.2
Related Reviews You Might Like
A Guide to Selecting the Best Bike Locks Tested
Choosing the right bike lock is essential to keep your bicycle safe from theft. With so many options available, it’s important to understand the different types of locks and what features matter most. The best lock for you depends on where you park your bike, how long you leave it unattended, and how portable you need the lock to be. By focusing on a few key specifications, you can find a lock that balances security, convenience, and durability for your needs.
Lock Type
The lock type refers to the design and mechanism of the bike lock, such as U-locks, chain locks, cable locks, and folding locks. This is important because each type offers a different balance of security and portability. U-locks are generally the most secure but can be heavy and less flexible. Chain locks offer good security and flexibility but can be bulky. Cable locks are lightweight and easy to carry but offer the least security. Folding locks are compact and offer moderate security. To pick the right type, consider where you’ll be locking your bike and how much you value portability versus security. For high-risk areas, a U-lock or heavy chain is best, while for quick stops in low-risk areas, a cable or folding lock may suffice.
Security Rating
Security ratings are often provided by independent organizations and indicate how resistant a lock is to theft attempts. This is important because it helps you compare how well different locks can protect your bike. Ratings usually range from basic to high security. Basic-rated locks are suitable for short stops in low-risk areas, while high-security locks are designed for long-term parking in high-risk locations. Choose a lock with a security rating that matches the level of risk in the places you usually leave your bike.
Shackle or Chain Thickness
The thickness of the shackle (for U-locks) or chain is a key factor in how hard it is to cut through the lock. Thicker shackles or chains are harder for thieves to break, but they also add weight. Thickness typically ranges from about 8mm (lightweight, less secure) to 18mm or more (very secure, heavy). If you need maximum security, go for a thicker lock, but if you need something easy to carry, a thinner lock may be more practical for short stops.
Locking Mechanism
The locking mechanism refers to how the lock is secured and opened, such as key, combination, or smart locks. This is important because it affects both security and convenience. Key locks are generally more secure, but you need to keep track of the key. Combination locks are convenient but can be less secure if the code is simple. Smart locks offer features like keyless entry but may require batteries. Choose a mechanism that fits your lifestyle—if you often lose keys, a combination or smart lock might be better, but for maximum security, a key lock is usually best.
Portability
Portability refers to how easy it is to carry the lock with you. This is important if you need to transport the lock on your bike or in a bag. Heavier, bulkier locks offer more security but can be a hassle to carry, while lighter locks are easier to take along but may offer less protection. Think about how far you ride and how often you’ll need to carry the lock—if you commute daily, a balance between security and portability is key.
Weather Resistance
Weather resistance means how well the lock can withstand rain, snow, and other elements without rusting or jamming. This is important for durability, especially if you park your bike outdoors. Some locks have protective coatings or covers to keep out moisture. If you live in a wet or humid climate, look for a lock that is specifically designed to resist weather to ensure it lasts longer and works reliably.
Best Reviews Guide Newsletter
Get exclusive articles, recommendations, shopping tips, and sales alerts
Sign up for our newsletter to receive weekly recommendations about seasonal and trendy products
Thank you for subscribing!
By submitting your email address you agree to our Terms and Conditions and Privacy Policy