ABUS Ultimate 420K U-lock - handy, practical, safe. The 14 mm thick round bracket made of hardened steel and the red signal colour make potential thieves clear at first glance that they should keep their fingers off this bike. In addition to the shackle, the lock housing and load-bearing parts of the locking mechanism are also made of specially hardened steel, so they provide high resistance to forcible break-up attempts. Compact design - easy to carry The handy lock can be taken on any bike ride on the bracket included in the package. The ABUS lock holder USH fits frame tubes with a diameter of 15 to 35 mm.