There are locks and then there is the Ultimate 420. If you are looking for a U-lock that will deter potential thieves just by looking at it, then you need look no further. Thirteen millimeters of hardened special steel and the aggressive color scheme make it immediately clear to any bike thief that he has bad cards here. At the same time, the Ultimate 420 is so compact that you can easily stow it away. Its place it finds in any backpack and bag and is thus always there when you need to secure your valuable bike. Mounting: USH - holder for quick mounting on the bike frame Weight: 1300 g Details: Special, modern design of the lock body casing allows optimal handling Type: U-lock Locking system: key lock Material specifications: specially hardened steel Lock cylinder: high quality lock cylinder for high protection against tampering, e.g. picking Security level: 12 Theft protection: high security Keys: two keys included Lock type: key lock; mass U-lock U-lock height: 300 mm U-lock width: 100 mm U-lock diameter: 13 mm.