The Ultimate 420 radiates a feeling of security through its appearance alone.
There are locks and then there is the Ultimate 420. If you are looking for a shackle lock that will deter potential thieves just by looking at it, then you don't have to look far. Thirteen millimeters of hardened special steel and aggressive coloring make it immediately clear to any bicycle thief that they have no chance here.
At the same time, the Ultimate 420 is so compact that you can easily stow it away. It finds its place in every backpack and bag and is therefore always with you when you need to secure your valuable bicycle.
Hardened 13 mm round bracket
The shackle, housing and supporting parts of the locking mechanism are made of specially hardened steel
The special, modern design of the lock body sheathing enables optimum handling
High-quality locking cylinder for high protection against manipulation, e.g. picking
Good protection at medium theft risk
Recommended for securing good bicycles
The longer the shackle, the easier the bicycle can be locked to a fixed object
Kryptonite's KryptoLok 955 Integrated Chain is a 9mm-thick, four-sided link chain made of triple-heat-treated, boron-manganese steel for serious strength. Its integrated high-security lock cylinder is pick, drill, and cut resistant.