In the world of cycling, securing your bike against theft is a paramount concern. A reliable bike lock can make all the difference, and the Kryptonite Keeper 712 Bike Chain Lock is one such product that has caught our attention. This review will delve into the features, pros, cons, and overall performance of this bike lock, providing you with an in-depth understanding of whether it’s the right fit for your cycling security needs.
Our Top Pick
Key Features and Specifications
Design and Build Quality
Robust Construction
- High-Quality Materials: The Kryptonite Keeper 712 is constructed from 7mm, four-sided 3T manganese steel chain links. This material is known for its high tensile strength, making it extremely resistant to cutting and sawing.
- Hardened Deadbolt Design: The lock features a hardened deadbolt design that includes an anti-rotation mechanism. This prevents the chain from being twisted or rotated, adding an extra layer of security against attacks.
Weather-Resistant Nylon Sleeve
- Protective Sleeve: The chain is covered with a weather-resistant nylon sleeve that protects it from the elements. This sleeve also prevents the chain from scratching your bike’s frame, maintaining the bike’s aesthetic and structural integrity.
Lock Mechanism
High-Security Disc-Style Cylinder
- Anti-Pick and Anti-Drill: The lock uses a high-security disc-style cylinder, which is designed to resist picking and drilling. This ensures that the lock cannot be easily tampered with by thieves using common tools.
- Resettable Combination Lock: For added convenience, the Kryptonite Keeper 712 offers a resettable four-digit combination lock option. This allows users to set their own code, eliminating the need to carry keys. A keyed version is also available for those who prefer traditional lock mechanisms.
Dimensions and Weight
- Chain Length: The chain measures 47.3 inches (120 cm) in length, providing ample flexibility to secure your bike to various objects.
- Weight: Weighing approximately 3.75 to 4.5 pounds, the chain lock is heavy enough to deter thieves but still manageable to carry with you.
Practical Applications
Versatile Security Uses
- Bicycles: The Kryptonite Keeper 712 is ideal for securing bicycles in urban environments where theft is a common concern. Its robust design ensures that your bike remains safe when parked in public spaces.
- Motorcycles and Scooters: In addition to bicycles, this chain lock provides excellent security for motorcycles and scooters. Its length and strength make it suitable for securing larger vehicles.
- Other Uses: Beyond bikes and motorcycles, the chain lock can also be used to secure gates, fences, and other outdoor equipment, showcasing its versatility and reliability.
Performance and Versatility
User Experience
Ease of Use
- Simple Operation: The Kryptonite Keeper 712 is easy to set up and use. The lock mechanism is intuitive, and the chain is flexible enough to maneuver around different objects. Whether you are using the combination lock or the keyed version, securing your bike is straightforward.
- Compact Design: Despite its robust build, the chain lock is flexible and compact, making it easy to carry around. You can conveniently store it in a backpack or bike bag without taking up much space.
Durability
- Sturdy Build: The high-quality materials used in the construction of the Kryptonite Keeper 712 ensure that it can withstand regular use and harsh conditions. The manganese steel chain links are resistant to cutting and impact, providing long-lasting security.
- Maintenance Tips: To keep the lock in good condition, it’s important to regularly inspect it for signs of wear and tear. Cleaning the nylon sleeve and lubricating the lock cylinder can help maintain its functionality and extend its lifespan.
Kryptonite Keeper 712 Bike Chain Lock
Experience robust defense against theft attempts with this user-friendly, key-free bike lock.
Comparisons with Other Models
Kryptonite Keeper 712 vs. ABUS Granit CityChain XPlus
- Feature Comparison: Both locks are known for their high security and durability. However, the ABUS Granit CityChain XPlus tends to be more expensive. It also features thicker chain links and a more advanced lock cylinder, which may offer slightly better security but at a higher cost.
- Unique Selling Points: The Kryptonite Keeper 712 offers excellent value for money with its robust features and affordable price. Its weather-resistant sleeve and versatile locking options make it a practical choice for most users.
Kryptonite Keeper 712 vs. OnGuard Bulldog Chain Lock
- Feature Comparison: The OnGuard Bulldog Chain Lock is another popular choice, offering similar levels of security with its thick chain links and strong lock mechanism. However, the OnGuard lock is often heavier and less flexible, which can make it less convenient to carry.
- Unique Selling Points: The Kryptonite Keeper 712’s combination lock option and compact design give it an edge in terms of convenience and ease of use. Its lighter weight also makes it more portable without sacrificing security.
Why Choose the Kryptonite Keeper 712 Bike Chain Lock?
The Kryptonite Keeper 712 bike chain Lock stands out from its competitors for several reasons:
- Robust Security: The lock is designed with hardened steel chain links, providing a robust defense against theft attempts. This makes it harder to cut through compared to many other locks in the market.
- Key-Free Convenience: The combination wheels on the Keeper 712 move easily, making it user-friendly. Owners appreciate that they don’t need to carry or risk losing a key. This key-free convenience is a significant advantage over many other locks that require keys.
- Value for Money: Most users feel that the 712 Combo Chain is a good value at a reasonable price. It remains durable through extensive outdoor use1, which means it’s likely to be a long-lasting investment compared to other locks that may wear out faster.
- Size and Flexibility: The Keeper 712 Combo Chain is a good length to get around most secure objects, bike frames, and wheels. This flexibility is often not found in rigid U-locks.
- Reputation: Kryptonite is a well-known brand in the bike security industry, and many users trust their products for their quality and reliability.
Conclusion
Kryptonite Keeper 712 Bike Chain Lock is a robust and reliable security solution ideal for protecting bikes, motorcycles, scooters, gates, and fences. Its advanced features, such as the 3T manganese steel chain links, patent-pending end link design, and high-security disc-style cylinder, ensure maximum protection against theft. With its combination of superior construction, ease of use, and positive customer feedback, the Kryptonite Keeper 712 is a valuable investment for anyone looking to secure their valuable belongings.
FAQs
How long is the Kryptonite Keeper 712 Bike Chain Lock?
The chain length is 47.3 inches (120 cm), providing ample flexibility for securing your bike to various objects. This length allows you to lock both the frame and the wheels of your bike, ensuring maximum security.
Is the lock resistant to picking and drilling attempts?
Yes, the high-security disc-style cylinder is designed to resist picking and drilling. This feature ensures that the lock cannot be easily tampered with using common tools, providing robust protection against theft.
Can I use this lock to secure my gate or fence?
Absolutely! The Kryptonite Keeper 712 Bike Chain Lock is versatile and can be used to secure various objects, including gates and fences. Its robust construction makes it suitable for a range of security applications.
Is the lock weather-resistant?
Yes, the durable weather-resistant nylon sleeve protects the chain against scratches and ensures it remains functional even in harsh weather conditions. This sleeve helps prevent rust and corrosion, extending the life of the lock.
