Abus Ultra 410K U-Lock

This lock carries a Sold Secure Silver rating, which means it provides a solid, reliable level of protection suitable for moderate-risk areas. It is designed to deter opportunistic theft in urban environments rather than high-risk, long-term parking situations.

The included SH34 bracket is compatible with bike frame tubes that have a diameter between 24mm and 35mm. It is designed to hold the lock securely in place to prevent rattling while you ride.

The shackle is 12mm thick and made from hardened steel. This thickness is a standard benchmark for providing strong resistance against common cutting tools used by bike thieves.

While it is built with hardened steel for security, the 410K is designed to balance strength with portability. The included frame mount helps distribute the weight effectively, making it a practical choice for daily commuters who need to carry their lock on every ride.

Yes, the double-bolt mechanism secures both ends of the shackle into the lock body. This design is significantly more resistant to twisting and leverage attacks compared to locks that only secure one side of the shackle.