Motorcycle Heavy Duty Anti-Theft Chain Locks

Our lock is made of unbreakable 3T Manganese Steel Materials and Heat Treatment Hardening Technology, featuring several unique and secure design elements. The 10mm square chain has 39 rings (including end rings) and is highly cut-resistant, able to withstand up to 10KN of tension and 20KN of shear force. Complementing the chain is a 10mm thick steel ring with a 48mm inner diameter, allowing for versatile locking options.

One of the standout features is the Cut Resistant U Lock, which has an inner diameter of only 25mm - smaller than typical U-locks. This compact size makes it difficult for hydraulic shears to penetrate, effectively deterring would-be thieves. The bright color of the lock itself could also be enough to discourage criminals, causing them to bypass your bike in favor of an easier target.

Protecting the chain is a nylon sleeve cover, which guards against rust, scratches, and potential damage to the bicycle. Rivets are used to secure the sleeve and prevent it from shifting. This thoughtful design element helps maintain the pristine condition of your bike.

Another innovative aspect is the included set of 4 unique, ergonomic keys. One key is designated for daily use, while the others are self-assigned, making them difficult to duplicate or wear out. The keys are made of durable stainless steel and feature a key code, which should be recorded immediately. If a key is lost, our spare key making service can provide a replacement.

Complementing the chain and U-lock is a pure copper crescent lock with a protective cover. This serves as a backup measure, providing an additional layer of security. The keyhole is designed to be waterproof and dustproof, helping to extend the lock's lifespan.

This comprehensive locking system is suitable for a wide range of applications, from securing bikes and motorcycles to gates, fences, grills, lawnmowers, tools, and more. With its heavy-duty construction and multi-use versatility, the lock offers excellent protection for your valuable possessions, both indoors and outdoors.

Customers have overwhelmingly praised this lock, with a rating of 4.7 out of 5 stars from 218 reviews. The product is available in various lengths, including 4ft, 3ft, 5.3ft, and 6.6ft, catering to different needs and applications.

In summary, this lock stands out for its uncompromising security features, including the cut-resistant U-lock, thick chain, and unique key system. The nylon sleeve cover and backup crescent lock further enhance the overall protection, making it a reliable choice for safeguarding your belongings.

product information: