Litelok X1 & X3 Anti-Angle Grinder U-Locks Review

Litelok’s X1 and X3 U-locks represent some of the most robust bike security options currently available, designed specifically to resist attacks from angle grinders—the preferred tool of many bike thieves. Both models have earned the prestigious Sold Secure Diamond rating after rigorous testing by the UK’s Master Locksmiths Association, underscoring their effectiveness in deterring theft. The X1 offers a balance between weight and protection, making it suitable for daily use, while the heavier X3 provides enhanced security for longer, unattended parking periods, such as overnight stays. At the core of these locks is Litelok’s proprietary Barronium® composite, a multi-layered fusion of hardened ceramic and metal that actively wears down cutting discs, significantly increasing the time and noise required to breach the lock. The X3 model further bolsters security with an ABLOY locking core, known for its resistance to picking, adding an extra layer of defence. Both locks feature a soft, frame-friendly rubber exterior to prevent damage to the bike’s finish, and reflective accents for visibility. Additionally, Litelok offers a Tactical Mount system, a durable polymer cradle that securely attaches the lock to various bike frame locations, enhancing convenience without compromising protection. User experience with the X1 and X3 is straightforward and practical. Locking involves simply securing the shackle around a fixed object and closing it, with no complicated steps involved. The Tactical Mount is easy to install and operate, allowing riders to quickly release or attach the lock with a simple twist mechanism. While the locks add noticeable weight—3.7 lbs for the X1 and 4.6 lbs for the X3—this is considered a reasonable trade-off for the high level of security provided, especially when compared to the cost and hassle of replacing a stolen e-bike. The Litelok X1 and X3 stand out in a market where bike theft remains a significant issue, with reported losses reaching into the hundreds of millions in the US alone, and actual theft figures likely much higher. These locks offer a compelling option for riders prioritising security, combining innovative materials and design to make theft attempts more difficult and time-consuming. For those seeking maximum protection without compromising on usability, the X3, paired with the Tactical Mount, represents a particularly strong choice, while the X1 caters well to those needing a lighter, more portable solution.