Struggling to keep your bike safe from theft? A reliable bike chain lock is your best defense.
A bike chain lock’s core purpose is to provide robust security for your bicycle. The **Kryptonite Keeper 785** and **Kryptonite Keeper 712** are top choices, offering heavy-duty protection. These locks ensure peace of mind, allowing you to park your bike without worry.
Standout features include the **4-digit resettable combination** of the Kryptonite Keeper 712 Combo, which simplifies access and enhances security. The **heavy-duty steel chain** of the Keeper 785 offers exceptional durability, making it an efficient choice for long-term use.
In our full review, we break down security, ease of use, and more to help you choose the perfect bike chain lock.


Kryptonite Keeper 785 Heavy Duty Chain Lock
The Kryptonite Keeper 785 Bike Chain Lock is designed to provide robust security for your bicycle, motorcycle, scooter, or any outdoor equipment that requires protection. Ideal for cyclists and outdoor enthusiasts, this heavy-duty chain lock measures 2.8 feet long, making it versatile enough for various locking scenarios. Crafted from 7mm hardened steel, it features a durable rubber coating that prevents scratches and wear on your bike, ensuring both security and aesthetic preservation.
One of the primary benefits of the Kryptonite Keeper 785 is its ability to deter theft effectively. The patented locking system includes a high-security disc-style cylinder that resists picking and drilling, while the unique end link design securely connects the chain to a hardened deadbolt, eliminating weak points. This innovative design significantly enhances user experience by providing peace of mind when leaving your bike unattended.
Pros
- Heavy-duty construction offers maximum resistance against cutting and leverage attacks.
- Patented locking system increases security against tampering.
- Protective rubber coating prevents scratching on your bike.
- Weather-resistant nylon sleeve adds durability against outdoor elements.
- Includes lifetime warranty and anti-theft protection program for added security.
Cons
- Weight of 1.59 kg (3.50 lbs) may be cumbersome for some users.
- Rated 5/10 for security, which may not suffice for high-risk areas.
In real-world usability, the Kryptonite Keeper 785 excels in providing a reliable locking solution for casual cyclists as well as those who frequently park their bikes in urban environments. While its weight may be a drawback for those seeking lightweight options, the security features outweigh this concern for many users. Additionally, the lock’s moderate security rating makes it best suited for areas with lower theft rates.
Overall, the Kryptonite Keeper 785 Bike Chain Lock is an excellent choice for anyone needing a dependable bike lock that offers both security and durability. Its combination of heavy-duty materials and thoughtful design makes it a valuable investment for protecting your bike and enhancing your outdoor experience.
To buy this product, click here.
Kryptonite Keeper 712 Heavy Duty Chain Lock
The Kryptonite Keeper 712 Bike Chain Lock is designed to provide robust security for bicycles, motorcycles, scooters, and even gates and fences. Ideal for urban cyclists and outdoor enthusiasts, this heavy-duty lock offers peace of mind with its impressive specifications. Measuring 4 feet long and made from 7mm hardened steel, the chain features four-sided links that resist cutting and leverage attacks, ensuring your vehicle remains secure.
This lock is particularly beneficial for those who frequently park their bikes in high-theft areas. Its durable rubber coating prevents scratches, while the weather-resistant nylon sleeve protects against wear and tear, enhancing the user experience. The patented locking system includes a high-security disc-style cylinder that resists picking and drilling, making it a reliable choice for serious cyclists.
Pros
- Maximum resistance against cutting and leverage attacks.
- Patented locking system enhances security against tampering.
- Protective rubber coating prevents damage to your bike.
- Weather-resistant design ensures durability in various conditions.
- Eligible for Kryptonite’s Anti-Theft Protection Offer and KeySafe program.
Cons
- Weighs 1.70kg (3.75 lbs), which may be heavy for some users.
- Rated 5/10 for security, may not be sufficient for high-risk areas.
Performance-wise, the Kryptonite Keeper 712 Bike Chain Lock stands out due to its heavy-duty construction and user-friendly design. The 4-foot length provides ample flexibility for securing your bike to various objects, while the two included keys ensure convenience. However, its weight may be a concern for those looking for a lightweight option for daily commutes.
This lock is best suited for cyclists who prioritize security and durability. While its weight and moderate security rating may limit its appeal in extremely high-risk environments, it remains a reliable choice for everyday use. Overall, the Kryptonite Keeper 712 offers excellent value for users seeking a dependable and effective bike lock solution.
To buy this product, click here.
Kryptonite Keeper 712 Combo Bike Lock
The Kryptonite Keeper 712 Combo Bike Chain Lock is designed to provide robust security for your bicycle, making it ideal for cyclists who prioritize safety. This heavy-duty lock features a 4-foot long, 7mm steel chain, ensuring that it can accommodate various bike sizes and styles, from e-bikes to mountain bikes. The lock’s combination mechanism, featuring a 4-digit resettable code, offers over 10,000 possible combinations, enhancing its anti-theft capabilities.
This product effectively addresses the common concern of bicycle theft, allowing users to confidently secure their bikes in public spaces. The durable materials and thoughtful design improve the overall user experience by providing peace of mind while riding or parking your bike.
Pros
- High Durability: The 3t manganese steel chain links resist cutting and sawing, providing excellent security.
- Ease of Use: The 4-digit resettable combination lock allows for quick access without the need for keys.
- Versatile Length: At 4 feet long, it offers flexibility in locking your bike to various structures.
- Lightweight Design: Despite its strength, the lock remains manageable for everyday use.
Cons
- Price Point: While offering superior security, it may be pricier compared to basic locks.
- Weight: Some users may find it slightly heavier than simpler locking options.
The Kryptonite Keeper 712 Combo Bike Chain Lock excels in performance, providing reliable security for cyclists in urban environments. Its standout features, such as the resettable combination and heavy-duty construction, make it an excellent choice for those looking to protect their investment. While it is best suited for serious cyclists and commuters, potential buyers should consider its weight and price in relation to their specific needs.
Overall, this lock offers great value for cyclists seeking a dependable solution to bike theft, ensuring that your ride remains safe and secure.
To buy this product, click here.
Titanker Heavy Duty Bicycle Lock Chain
Titanker Heavy Duty Bicycle Lock Chain with Keys is designed to provide robust security for your bicycles and other valuable items, ideal for cyclists and outdoor enthusiasts. Its 3-foot length and heavy-duty 6mm thick steel links ensure maximum cut-resistance, making it a reliable choice for safeguarding your possessions.
This bike chain lock is perfect for a variety of users, including those who own bicycles, motorcycles, ladders, lawnmowers, and even toolboxes. The protective cloth sleeve prevents rust and scratches, while the dust cover protects the keyhole from rain and debris, enhancing the lock’s longevity. With its user-friendly design, you can easily snap it together without needing the keys, adding convenience to your locking routine.
Titanker Heavy Duty Bicycle Lock Chain effectively addresses the common problem of bike theft, providing peace of mind for users. Its durable construction and thoughtful design features significantly improve the user experience by ensuring that your items remain secure wherever you go.
Pros
- Heavy-duty steel construction offers excellent cut-resistance.
- Protective cloth sleeve prevents rust and scratches.
- Easy to use with a snap-lock mechanism.
- Portable size and lightweight design for convenience.
- Includes two keys for added security and convenience.
Cons
- Not completely theft-proof; should not be left unattended for long periods.
- Weighs 1.4 pounds, which may be slightly heavy for some users.
In terms of performance, the Titanker Heavy Duty Bicycle Lock Chain excels in usability and security. Its standout features, such as the protective sleeve and easy locking mechanism, make it a practical choice for everyday use. While it is best suited for individuals who frequently lock their bikes or outdoor equipment, potential users should be aware of its limitations regarding long-term outdoor use in high-crime areas.
Overall, the Titanker Heavy Duty Bicycle Lock Chain is a valuable investment for anyone seeking reliable security for their bicycles and other belongings. Its combination of durability, ease of use, and thoughtful design makes it an excellent choice for cyclists and outdoor enthusiasts alike.
To buy this product, click here.
Kryptonite Evolution 1090 Heavy Duty Chain Lock
The Kryptonite Evolution 1090 Bike Chain Lock is designed to provide robust security for bicycles, motorcycles, scooters, and even gates or fences. Ideal for urban cyclists and outdoor enthusiasts, this heavy-duty lock measures 3 feet long and features a 10mm hardened steel chain, making it a reliable choice for anyone seeking to protect their valuable assets. The lock’s durable construction ensures it withstands various weather conditions and potential theft attempts.
This bike chain lock solves the critical problem of theft, offering peace of mind to users who park their bikes in public spaces. Its innovative design incorporates a patented locking system with a reinforced oval crossbar lock head, which is resistant to picking and drilling. The unique end link design connects the chain to a hardened deadbolt, eliminating weak points often exploited by thieves.
Pros
- Heavy-duty construction provides maximum resistance against cutting and leverage attacks.
- Patented locking system enhances security, reducing the risk of theft.
- Protective features like a rubber coating prevent scratches on your bike.
- Weather-resistant nylon sleeve ensures durability in various conditions.
- Lifetime warranty offers peace of mind and reliable customer support.
Cons
- At 3 feet long, it may not be suitable for larger bikes or multiple locking points.
- Heavier than some alternatives, which might be a concern for portability.
- Price point is higher compared to basic chain locks, reflecting its advanced security features.
The Kryptonite Evolution 1090 excels in real-world usability, providing a reliable option for those who prioritize security. Its standout features, such as the sliding dust cover and anti-theft protection program, enhance its appeal. This lock is best suited for cyclists who frequently park in high-theft areas and require a dependable solution to safeguard their investments.
In summary, the Kryptonite Evolution 1090 Bike Chain Lock is an excellent choice for serious cyclists and outdoor enthusiasts looking for a high-security locking solution. Its combination of durability, advanced security features, and customer support makes it a worthwhile investment for anyone concerned about bike theft.
To buy this product, click here.
Faq about best bike chain and lock:
1: What is the best type of bike chain lock?
The best type of bike chain lock is a heavy-duty, hardened steel chain with a durable padlock. Look for locks that offer high security ratings and are resistant to cutting and picking.
2: How do I choose the right bike chain lock?
Choose a bike chain lock based on security level, length, and weight. Consider your bike’s value and the area’s crime rate when selecting the appropriate lock.
3: Are chain locks better than U-locks?
Chain locks provide flexibility and can secure multiple bikes or accessories. U-locks often offer higher security for individual bikes. The best choice depends on your specific needs.
4: How long should my bike chain lock be?
A bike chain lock should be long enough to secure your bike to a fixed object. Generally, a length of 3 to 6 feet is ideal for most situations.
5: Can I use a chain lock for my electric bike?
Yes, you can use a chain lock for an electric bike. Ensure the lock is sturdy and rated for high security to protect your investment.
Conclusion
The Kryptonite Keeper 785 Heavy Duty Chain Lock exemplifies durability and security, offering robust protection for discerning cyclists. Its formidable construction and length provide versatility, ensuring peace of mind in various environments.
Conversely, the Kryptonite Keeper 712 Heavy Duty Chain Lock combines strength with portability, making it an excellent choice for urban commuting. Its compact design does not compromise on security, appealing to those who prioritize both convenience and safety.




