High Security U-Lock with Thick Steel Shackle

Designed for maximum protection, this heavy-duty U-lock features a massive 16.8 mm hardened steel shackle. The thick diameter is specifically engineered to resist heavy-duty cutting tools and leverage attacks. With interior dimensions of 115 mm by 202 mm, it provides a tight fit that minimizes the space available for thieves to insert prying tools or hydraulic jacks.

The locking mechanism utilizes a quad bolt system that secures the shackle to the crossbar at four different points. This redundant locking technology ensures that even if one side is compromised, the shackle remains firmly held in place. The internal cylinder is built to high standards, offering significant resistance against drilling and picking to maintain the integrity of the security device.

A dedicated mounting bracket is included to facilitate easy transport on the bicycle frame, keeping the lock accessible at all times. The robust construction is complemented by a weather-resistant design that protects the internal components from moisture and debris. This model is an excellent choice for cyclists who require the highest level of security for high-risk urban environments.