Kryptonite Keeper 12 LS U-Lock with FlexFrame-U Bracket
Kryptonite Keeper 12 LS U-Lock with FlexFrame-U Bracket
Kryptonite Keeper 12 LS U-Lock with FlexFrame-U Bracket
Kryptonite Keeper 12 LS U-Lock with FlexFrame-U Bracket
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Kryptonite Keeper 12 LS U-Lock w/ side mount, Snap-in Bracket (4"x10") -Live4Bikes

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Fortify Your Bike's Security: Kryptonite Keeper 12 LS U-Lock with Side Mount, Snap-in Bracket (4"x10")

When it comes to securing your bicycle, the Kryptonite Keeper 12 LS U-Lock stands out as a stalwart defender against theft. With its innovative features and robust construction, this U-lock is designed to provide peace of mind for cyclists. In this article, we'll explore the key specifications and advantages of the Kryptonite Keeper 12 LS, ensuring your bike stays protected wherever your adventures take you.

Specifications & Features:

  1. 12mm Hardened Steel Shackle: Crafted from hardened steel, the 12mm shackle provides a formidable barrier against theft attempts, ensuring the integrity of your bike's security.

  2. New Hardened Deadbolt Anti-Rotation Design: The Keeper 12 LS introduces a new hardened deadbolt with an anti-rotation design, enhancing resistance to twisting attacks and providing an extra layer of security.

  3. Includes 2 Stainless Steel Keys: The set includes two stainless steel keys with an ergonomic design, reducing torque and minimizing the risk of bending or breaking. The keys ensure ease of use while maintaining durability.

  4. Side Mount, Snap-in Bracket: The inclusion of a side mount, snap-in bracket enhances convenience for cyclists, allowing for easy transport of the U-lock during rides.

  5. Disc Style Cylinder with Center Keyway: The disc-style cylinder with a center keyway adds an additional layer of security, making it resistant to picking and drilling attempts.

  6. Protective Vinyl Coating: The U-lock features a protective vinyl coating, shielding it from the elements and preventing scratches, preserving the aesthetic appeal of your bicycle.

  7. Key Safe Program: Kryptonite's Key Safe Program allows users to register their keys, providing a key replacement service in case of loss or damage, ensuring continuous access to your bike lock.

  8. Anti-Theft Protection: The Kryptonite Keeper 12 LS comes with an anti-theft protection offer of $500, €400, and £300, offering cyclists assurance that their investment is safeguarded against theft.

  9. Model Number: 004202: The unique model number, 004202, ensures easy identification and compatibility with specific Kryptonite products, facilitating accurate purchase decisions.

Advantages of Choosing Kryptonite Keeper 12 LS from Live4Bikes:

  1. Expert Guidance and Knowledge: Live4Bikes is renowned for its extensive product knowledge and expertise in the cycling industry. Choosing Live4Bikes ensures that you benefit from the guidance of knowledgeable staff who can assist you in selecting the right security solutions tailored to your specific biking needs.

  2. Authenticity and Quality Assurance: Live4Bikes is committed to providing authentic and high-quality cycling accessories. Purchasing the Kryptonite Keeper 12 LS U-Lock from Live4Bikes ensures that you are investing in a genuine product that meets the highest standards of security and durability.

  3. Wide Range of Cycling Accessories: Live4Bikes offers a comprehensive selection of cycling accessories, components, and gear. Whether you're a seasoned cyclist or a beginner, you'll find a variety of products to cater to your specific preferences, allowing you to customize your bike for an optimal riding experience.

  4. Customer-Centric Service: Live4Bikes prioritizes efficient and customer-friendly service. From product selection to post-purchase support, their team is dedicated to ensuring a seamless and satisfactory shopping experience, making Live4Bikes a trusted and customer-centric choice.

The Kryptonite Keeper 12 LS U-Lock with Side Mount and Snap-in Bracket is not just a security solution; it's an investment in the safety and longevity of your bicycle. When you choose to acquire this U-lock from Live4Bikes, you not only gain access to a top-tier product but also experience the benefits of a customer-centric approach that prioritizes your security needs. Ride with confidence, knowing that the Kryptonite Keeper 12 LS and Live4Bikes are dedicated to safeguarding your cycling adventures with reliability, convenience, and uncompromising security.


  • U-locks are durable and strong, made of hardened steel that is difficult to cut or break.
  • Cable locks are low-level security and should be used in conjunction with a more secure lock.
  • Anti-theft products like GPS trackers and bike alarms can help deter thieves and locate stolen bikes.
  • High-quality locks and anti-theft products are made from materials like hardened steel, titanium, or boron carbide.
  • Always lock your bike to a fixed object and avoid leaving it unattended for extended periods in high-traffic areas.
  • is a reputable online retailer for purchasing high-quality locks and anti-theft products.

Generally speaking,  Bicycle theft is a common problem for cyclists, with thieves targeting bikes that are not properly secured. U-locks, cable locks, and anti-theft products are some of the most popular methods for securing bicycles. In this article, we will explore the different types of locks and anti-theft products available and offer tips on how to secure your bike so that thieves will not steal it.

U-Locks U-locks are one of the most popular types of bicycle locks due to their durability and strength. These locks consist of a shackle, which is a U-shaped metal bar, and a locking mechanism. U-locks are typically made from hardened steel, which is difficult to cut or break with tools such as bolt cutters.

When using a U-lock, it is essential to secure both the frame and the wheel of the bicycle to a fixed object such as a bike rack or a pole. U-locks that lock through the frame and the wheel are the most secure and will deter most thieves. It is also important to ensure that the shackle of the lock is not too big, as a smaller shackle will make it harder for thieves to insert tools such as crowbars.

Cable Locks Cable locks are a low-level security option and are not recommended for use as a primary lock. These locks consist of a flexible steel cable and a locking mechanism, which can be easily cut with bolt cutters or similar tools. Cable locks are best used in conjunction with a more secure lock, such as a U-lock.

Anti-Theft Products There are several anti-theft products available that can help deter thieves from stealing your bike. One such product is a GPS tracker, which can be attached to the frame of the bicycle and can help you locate your bike if it is stolen. Another option is a bike alarm, which will sound an alarm if the bike is moved or tampered with.

Materials The level of security provided by a lock or anti-theft product will depend on the materials used to make it. Hardened steel is the most common material used in high-security locks and is difficult to cut or break. Other materials such as titanium or boron carbide can offer even greater resistance to cutting and breaking.

Location High-traffic areas such as shopping malls, gyms, and schools are prime targets for bicycle thieves. Thieves can steal a bike quickly and easily in crowded areas, making it important to secure your bike properly when leaving it in public areas. Always lock your bike to a fixed object and avoid leaving it unattended for extended periods.

In conclusion, securing your bike with a high-quality lock or anti-theft product is essential to deter thieves from stealing your bicycle. U-locks are the most secure option for locking your bike, and cable locks should only be used in conjunction with a more secure lock. When choosing a lock, look for one made from hardened steel or other durable materials, and always lock your bike to a fixed object in high-traffic areas. Consider purchasing an anti-theft product such as a GPS tracker or bike alarm for added security. Finally, is a great resource for purchasing high-quality locks and anti-theft products.