The ULTIMATE 420 is the fusion of superior qualities found in its predecessors. It shares the innovative design of the Super Ultimate 430, with a shackle that extends along the entirety of the lock's body, securely anchored on both ends by steel bolts. This design fortifies the lock against attempts of twisting and leverage attacks. Crafted with a slightly slimmer shackle compared to the SUPER ULTIMATE 430, it maintains robust resistance to cutting, crushing, and bending, courtesy of the hardened steel used in the shackle, body, and other critical components. To safeguard against cosmetic damage, the ULTIMATE 420 is encased in a soft plastic cover that prevents scratches on paint surfaces. Continuing ABUS's legacy of durability, this model also boasts high rust resistance, ensuring long-term protection and reliability.