Abus 420 U-Lock

Unlike flexible cable locks, which can be easily cut with simple hand tools, the Abus 420 is constructed from hardened steel. This rigid U-lock design provides significantly higher resistance to cutting and prying, making it a much more secure deterrent for urban environments.

Yes, the Abus 420 is specifically engineered with a compact profile. Most riders find it easy to stow in a backpack or mount to their frame, making it a convenient choice for daily commuting without adding unnecessary bulk.

While hardened steel is heavier than aluminum or cable materials, it is necessary for the security level this lock provides. The 420 balances this weight by keeping the shackle length compact, ensuring you get maximum protection without carrying an excessively heavy piece of equipment.

The Abus 420 is a robust choice for short-to-medium duration stops in urban areas. However, if you are leaving your bike in high-risk locations for extended periods, we recommend pairing this U-lock with a secondary cable to secure your wheels or accessories.

Most versions of the Abus 420 include a frame mounting bracket, allowing you to attach the lock directly to your bike's downtube or seat tube. It is worth checking your specific package contents, as mounting options can vary by retailer.