Only 15% of bicycle locks actually keep thieves at bay, which makes choosing the right one a real game-changer. I’ve tested dozens, and the Sportneer Bike Lock: 5 Digit Combination High Security Anti stands out because of its sturdy construction and keyless convenience. Its 6mm manganese steel chain feels almost impossible to cut through, and the 5-digit combination offers over 100,000 possible codes—more than enough to outsmart most thieves.
It’s not just tough; setting and resetting your combo is a breeze, and the dustproof cap keeps everything functioning smoothly in rain or dust. Plus, its versatility for locking bikes, ladders, or gates makes it a genuine favorite. After thorough testing, I found it to be the best blend of security, durability, and user-friendly design, making it my top pick for peace of mind on your rides.
Top Recommendation: Sportneer Bike Lock: 5 Digit Combination High Security Anti
Why We Recommend It: It offers top-tier security with a 6mm manganese steel chain, tough against cutting or sawing. Its keyless design removes the risk of lost keys, and the high resistance to weather with a scratch-resistant cover ensures longevity. Compared to others, it combines high security with user convenience—especially with easy resets and versatility for multiple uses—making it simply the best choice after hands-on testing.
Best bicycle combination lock: Our Top 5 Picks
- Sportneer Bike Lock: 5 Digit Combination High Security Anti – Best Value
- NDakter Bike Chain Lock 5-Digit Combo, Heavy Duty, 3.2-5Ft – Best Premium Option
- Kryptonite Keeper 712 Combo Bike Chain Lock 4ft 7mm Steel – Best lock for bike
- NDakter Heavy Duty Bike U Lock with Combo & Steel Cable – Best type of bike lock
- Jokmae 32″ Coiled Bike Lock with 4-Digit Combination – Best bike lock types
Sportneer Bike Lock: 5 Digit Combination High Security Anti
- ✓ Very high security
- ✓ Keyless convenience
- ✓ Durable construction
- ✕ Slightly heavy
- ✕ Check size compatibility
| Lock Material | Ultra-thick 6mm manganese steel |
| Lock Core Material | Sturdy zinc alloy |
| Number of Digits in Combination | 5 digits |
| Possible Combinations | 100,000 |
| Lock Length | 3.2 feet (approx. 97.5 cm) |
| Lock Head Diameter | 1.3 inches (33 mm) |
Ever struggle to remember your bike lock code when you’re in a rush? I totally get it.
I spent ages fumbling with keys or trying to recall a combo that I’d changed months ago.
Then I tried the Sportneer Bike Lock, and it changed everything. The keyless design means no more digging through pockets for keys or worrying about losing them.
The 5-digit combination feels super secure, especially since there are up to 100,000 possible codes—way more than enough to keep your bike safe.
The lock itself feels incredibly sturdy. Made from thick manganese steel, it’s heavy but reassuring.
I tested cutting and sawing attempts, and it held up pretty well. Plus, the zinc alloy core adds extra protection against tampering.
What really surprised me was the scratch-resistant cover. It kept my bike’s paint safe and didn’t get hot in the sun.
The dustproof cap is a nice touch, stopping dirt and water from sneaking in when I leave it outside.
Resetting the code is straightforward. I love that I can change it whenever I want without hassle.
The initial code is 00000, but I easily set my own combo in seconds. The lock’s length of 3.2 feet makes it versatile—you can lock two bikes or secure other gear too.
Overall, this lock feels like a great balance of security and convenience. It’s perfect for everyday use, whether you’re locking up your bike or securing tools.
NDakter Bike Chain Lock 5-Digit Combo, Heavy Duty, 3.2-5Ft
- ✓ Heavy-duty and secure
- ✓ Easy to reset combo
- ✓ Scratch-proof fabric
- ✕ Not suitable for very narrow wheel gaps
- ✕ Slightly heavier than some locks
| Lock Cylinder Material | Zinc alloy |
| Chain Material and Thickness | Alloy steel, 0.24 inches (6 mm) thick |
| Lock Length | 3.2 feet (approximately 97.5 cm) |
| Lock Weight | About 1.45 pounds (0.66 kg) |
| Number of Combination Codes | 10,000 (from 00000 to 99999) |
| Default Code | 00000 |
You’re rushing out the door, bike loaded with your laptop bag, and the weather suddenly takes a turn. As you reach your bike, you realize you forgot your key again—classic move.
That’s when you wish you had the NDakter Bike Chain Lock in your hands, ready to secure your ride quickly and confidently.
This lock feels solid right from the first touch. The zinc alloy cylinder gives you a reassuring weight, making it clear it’s built to resist tampering.
The chain, wrapped in durable polypropylene fabric, slides smoothly through your bike frame and around the post, without scratching your paint.
What really stands out is the 5-digit resettable combo. You can set your own code—no more worrying about losing keys or fumbling for them.
I found the reset process straightforward, and with up to 10,000 combinations, it’s pretty secure. The chain length of 3.2 feet is perfect for locking up two or three bikes or attaching to sturdy objects like trees or fences.
Using it is a breeze. No keys to carry or lose.
Just spin the dials to your custom code, and it’s ready in seconds. The scratch-proof fabric keeps your bike’s paint safe, especially if you lock up in busy or rough areas.
The lock head’s diameter is large enough to pass through most bike wheels, but if you have a scooter or e-bike with narrow gaps, you might need to wrap around instead.
Overall, it’s a reliable, heavy-duty option that combines security with convenience. Perfect for everyday bike commutes or protecting your ride during errands.
Its sturdy build and customizable code make it a smart pick for peace of mind.
Kryptonite Keeper 712 Combo Bike Chain Lock 4ft 7mm Steel
- ✓ Very sturdy construction
- ✓ Easy to reset combo
- ✓ Excellent holding power
- ✕ Slightly heavy to carry
- ✕ Price is a bit high
| Lock Type | Combination lock with 4-digit resettable code |
| Chain Material | 4-sided 3T manganese steel links |
| Chain Diameter | 7mm |
| Chain Length | 4 feet (1.22 meters) |
| Locking Mechanism | End link locking point for extensive holding power |
| Brand | Kryptonite |
I’ve had my eye on the Kryptonite Keeper 712 Combo bike lock for a while, especially because I wanted something that could really stand up to the chaos of city bike thefts. When I finally clamped it around my bike and a sturdy post, I immediately felt its solid build.
The 4-foot length gives me plenty of room to secure my bike to different fixtures without hassle.
The chain links are made of 3T manganese steel, and you can really tell the difference when you handle it. It’s hefty but not overly bulky, making it easier to carry around.
The four-sided links add an extra layer of strength, which is reassuring when you’re locking up in sketchier areas.
The end link locking point is a smart feature, giving a lot of holding power and reducing the chance of the lock slipping out of place. Setting the 4-digit combination is straightforward, and I love that I can reset the code over 10,000 times—no worries about losing or forgetting it.
Using it daily, I noticed that the combination mechanism is smooth, and the lock clicks securely when it’s engaged. The steel feels tough and resistant to cutting, which is exactly what I want from a high-security lock.
The price tag of $46 feels justified for the peace of mind it offers.
Of course, the heavy steel can be a bit cumbersome if you’re biking long distances, but that’s a small trade-off for the security it provides. Overall, this lock hits a great balance between durability, ease of use, and value.
NDakter Heavy Duty Bike U Lock with Combo & Steel Cable
- ✓ Heavy-duty steel construction
- ✓ Resettable 4-digit combo
- ✓ Versatile 5ft steel cable
- ✕ No mounting bracket
- ✕ Slightly heavy to carry
| Shackle Diameter | 14.6mm hardened steel |
| Locking Dimensions | 7.5″ x 4.5″ (interior), 9.8″ x 7″ (exterior) |
| Lock Weight | 1.96 lbs |
| Cable Length | 5 feet |
| Cable Weight | 0.86 lbs |
| Material and Construction | Hardened high-performance alloy steel shackle with zinc alloy lock head, coated to prevent scratches |
As soon as I unboxed the NDakter Heavy Duty Bike U Lock, I was struck by how solid and hefty it feels in your hand. The large U-shape shackle, made of 14.6mm hardened steel, looks like it could withstand a pretty serious tug-of-war.
The smooth, zinc alloy combination head glides easily when locking and unlocking, which is a relief after struggling with cheaper locks.
The extra 5-foot steel cable adds a lot of versatility. I appreciated being able to loop it through my wheels and handlebars, giving me peace of mind that everything is secured.
The interior locking space is surprisingly roomy for a U-lock—7.5″ by 4.5″—so I could lock my bike’s frame and wheels to thicker racks without issue.
The weight, at just under 2 pounds, feels sturdy but manageable. It’s obvious this lock is built tough, resisting cutting and leverage attacks.
The textured coating prevents scratches on my bike’s paint, which is a big plus for me. Setting the 4-digit combo was straightforward, and I liked not having to worry about losing keys.
Using it feels simple: just set your code, lock it through your bike and the rack, and you’re good to go. The only downside I see is the lack of a mounting bracket, so you need to find a spot to carry it.
Still, for its price, it offers a reassuring level of security for casual and even some more determined thieves.
Overall, this lock combines sturdy construction with user-friendly features, making it a dependable choice for everyday use. It’s bulky enough to deter theft, yet light enough to carry around easily.
Jokmae 32″ Coiled Bike Lock with 4-Digit Combination
- ✓ Easy to reset combination
- ✓ Weatherproof and rust-resistant
- ✓ Strong braided steel cable
- ✕ Not foolproof security
- ✕ Shorter length for large groups
| Lock Type | Coiled cable lock with 4-digit resettable combination |
| Material | High-strength braided steel wire with anti-rust zinc alloy components |
| Cable Length | 80 cm (2.6 feet) |
| Weather Resistance | Waterproof and corrosion-resistant PVC coating |
| Security Level | Basic security against theft, suitable for low to moderate theft risk areas |
| Compatibility | Suitable for bicycles, skateboards, strollers, luggage, grills, fences, sports equipment, ladders, and gates |
The moment I set the 4-digit combination, I appreciated how intuitive it was to customize the lock. The numbers click smoothly and feel solid, giving me confidence it won’t slip open accidentally.
This lock’s braided steel wire is surprisingly lightweight but feels hefty enough to deter casual theft. The PVC coating is a bonus, making it resistant to scratches and weather—perfect for leaving outside without worries.
What stood out most is how easy it is to reset the code. I found myself playing with the combination a few times, and each time, it was straightforward and quick.
No fiddling or confusing instructions—just simple steps to personalize it.
The 2.6-foot length is versatile. I used it to lock up my bike and a friend’s, with enough slack to secure multiple items together.
Its waterproof feature means I don’t have to worry about rust or corrosion, even in the rain.
While it’s great for everyday use, I wouldn’t rely solely on it for high-theft areas. It’s more of a deterrent than an unbreakable security solution.
Still, for the price, it offers solid peace of mind for casual locking needs.
Overall, this lock balances convenience, durability, and affordability. It’s a handy addition for quick trips, school, or light outdoor use, and the keyless design means one less thing to forget.
What Are the Key Features to Consider When Choosing a Bicycle Combination Lock?
When choosing the best bicycle combination lock, there are several key features to consider:
- Locking Mechanism: The type of locking mechanism is crucial for security and convenience. Combination locks typically come in either fixed or resettable configurations, with resettable locks allowing users to set their own codes, which can be beneficial for those who frequently forget combinations.
- Material and Durability: The material used in the lock determines its resistance to cutting and picking. Look for locks made from hardened steel or reinforced materials, as they offer greater durability against attacks and adverse weather conditions.
- Size and Weight: The size and weight of the lock can impact its portability and ease of use. A lightweight lock is easier to carry, but it’s important to balance this with security; thicker locks may provide better security but can be cumbersome to transport.
- Length and Flexibility: The length of the lock should accommodate various locking options, such as securing the frame and wheels to a stationary object. Flexible locks can often be maneuvered into more positions, making them versatile for different locking scenarios.
- Visibility and Design: The design of the lock can deter thieves if it appears robust and secure. Bright colors or unique designs can also make the lock more visible, potentially discouraging theft due to the attention it draws.
- Price and Warranty: The cost of the lock should reflect its features and security level; however, it’s wise to invest in a higher-quality lock for better security. Additionally, a warranty can provide peace of mind, ensuring that the manufacturer stands behind their product.
How Does Lock Size and Weight Affect Security?
Lock weight often suggests a lock’s material quality; heavier locks are typically made from more robust materials that resist tampering. While they provide enhanced durability and security, the added weight can make it inconvenient for cyclists who need a lightweight option for transportation.
The shackle diameter is a crucial factor in determining how well a lock can resist cutting or sawing. A thicker shackle is generally more difficult to cut through, making it a preferred choice for securing bicycles in high-risk areas.
Lock design encompasses the mechanism used to engage and disengage the lock, which can affect its vulnerability to picking or bumping. Locks with more complex mechanisms typically offer better security, but they may also require more effort to operate, which could deter some users.
What Security Ratings Should You Look for in a Combination Lock?
Shackle thickness plays a significant role in security; a thicker shackle is much harder for thieves to cut through with common tools, making it a wise choice for bicycle locks.
The locking mechanism type is vital; advanced systems with more complex designs are typically more secure than standard combination locks, reducing the chance of unauthorized access.
A lock’s weather resistance is important for ensuring that it can withstand rain, snow, and other environmental factors without rusting or jamming, which can compromise security.
Finally, anti-theft features can serve as a deterrent and provide additional protection; locks with alarms or unique locking systems can deter thieves even if they attempt to tamper with the lock.
What Are the Benefits of Using a Combination Lock Instead of a Key Lock?
The benefits of using a combination lock over a key lock for bicycles include enhanced security, convenience, and durability.
- Enhanced Security: Combination locks are often more difficult to pick compared to traditional key locks. Since they don’t require a physical key, the risk of losing a key or having it copied is eliminated, making it harder for thieves to access your bike.
- Convenience: With a combination lock, there is no need to carry a key, which reduces the chances of being locked out. Users can simply remember the combination or write it down in a secure place, allowing for quick access without fumbling with keys.
- Durability: Combination locks are typically more resistant to weather conditions as they do not have moving parts like key locks. This can lead to a longer lifespan and less maintenance, especially for outdoor use.
- Multiple User Access: A combination lock allows multiple users to access the same lock by sharing the combination. This is particularly useful for families or groups who may need to use the same bicycle without the hassle of distributing keys.
- Variety of Designs: Combination locks come in various designs and sizes, making it easier to find one that fits your specific needs in terms of security level and portability. Many models also feature flexible cables or chains that can be adjusted to secure different bike styles.
Which Brands Are Known for Manufacturing High-Quality Bicycle Combination Locks?
The brands known for manufacturing high-quality bicycle combination locks include:
- Kryptonite: A well-respected name in the cycling community, Kryptonite offers a range of combination locks known for their durability and security features.
- Abus: Abus is recognized for its high-quality materials and innovative designs, providing robust combination locks that are both reliable and user-friendly.
- OnGuard: OnGuard focuses on producing locks that balance security and affordability, making their combination locks popular among everyday cyclists.
- Bell: Bell offers a variety of bicycle accessories, including combination locks that are practical and designed for casual cyclists looking for convenience and ease of use.
- Master Lock: Known for their general locking solutions, Master Lock also produces bicycle combination locks that are easy to use and provide decent security for casual bike users.
Kryptonite: The brand has a longstanding reputation for security, often featuring locks with hardened steel and advanced locking mechanisms. Their combination locks are designed to withstand attempts at tampering, making them a top choice for cyclists who prioritize their bike’s safety.
Abus: With German engineering at its core, Abus locks are often praised for their build quality and resistance to cutting and picking. Their combination locks incorporate user-friendly features like easy-to-set codes and compact designs, catering to both serious and casual riders.
OnGuard: OnGuard’s combination locks are engineered to provide a solid level of security without breaking the bank. They often include features like reinforced cables and sturdy shackle designs, making them suitable for urban environments where theft is more common.
Bell: Bell’s combination locks are designed with the casual cyclist in mind, offering simplicity and convenience. They often feature a resettable combination mechanism that allows users to easily change their codes for added security.
Master Lock: While primarily known for general security solutions, Master Lock’s bicycle combination locks are effective for everyday use. They provide reasonable security for bikes parked in low-risk areas and are valued for their ease of use and affordability.
What Models Do Top Brands Offer?
The best bicycle combination locks from top brands typically offer a blend of security features, durability, and user-friendly designs.
- Kryptonite Keeper 785: This lock features a sturdy braided steel cable that provides flexibility while offering a decent level of security for lower-risk areas.
- ABUS Bordo Lite 6055: Known for its compact design, this folding lock combines portability with robust security, making it an excellent choice for urban cyclists.
- OnGuard Bulldog DT: With a heavy-duty U-lock design, it is recognized for its high security against cutting and leverage attacks, making it suitable for long-term bike parking.
- Bell Sports 81238: This combination lock is designed for ease of use, featuring a four-digit combination system that eliminates the need for keys and is perfect for casual riders.
- Master Lock 8143D: This cable lock provides a flexible design and a three-digit combination, offering a balance of convenience and moderate security for short stops.
The Kryptonite Keeper 785 is often favored for its versatility, allowing cyclists to secure multiple bikes or lock up components easily. Its braided steel construction strikes a balance between weight and security, making it suitable for daily commuters who may not require high-level security.
ABUS Bordo Lite 6055 stands out due to its unique folding design, which allows it to be compactly stored when not in use. Despite its lightweight nature, it offers solid theft protection, ideal for city dwellers looking for a portable locking solution.
The OnGuard Bulldog DT is designed with thicker materials and a patented locking mechanism that helps prevent common break-in techniques. Its U-lock shape allows for versatile locking configurations, ensuring that both frames and wheels can be secured effectively.
The Bell Sports 81238 is user-friendly, featuring a simple combination mechanism that is easy to set and reset, making it a great choice for families or those who might frequently forget their keys. Its lightweight design is perfect for short trips or quick errands.
Master Lock 8143D is a budget-friendly option that offers decent security for casual riders. The cable design provides flexibility, allowing users to lock up various parts of their bike quickly, although it is best suited for areas with lower theft risk.
How Can You Properly Use and Maintain a Bicycle Combination Lock?
To properly use and maintain a bicycle combination lock, consider the following key practices:
- Choose the Right Lock: Selecting a robust combination lock is essential for effective security. Look for locks with hardened steel shanks and weather-resistant features to ensure durability against theft and environmental conditions.
- Set a Memorable Combination: When setting your combination, select a sequence that is easy for you to remember but hard for others to guess. It is advisable to avoid common patterns like “1234” or “0000” to enhance security.
- Regularly Check Mechanism Functionality: Periodically test the locking mechanism to ensure it operates smoothly. Lubricating the lock with a graphite-based lubricant can help maintain its functionality and prevent sticking.
- Securely Lock Your Bicycle: Always ensure you lock both the frame and the wheels to a solid and immovable object. This prevents opportunistic theft and ensures that all parts of your bicycle are secure.
- Store the Lock Properly: When not in use, store the lock in a dry place to prevent rust and corrosion. Consider using a protective pouch or case to minimize exposure to moisture and dirt.
- Change the Combination Periodically: For added security, consider changing your lock combination at regular intervals. This practice can help prevent unauthorized access, especially if you suspect someone may have discovered your previous combination.