Superior protection for medium to high crime areas. X4P Quattro Locking Mechanism for four-sided protection. Hefty 14mm hardened steel TriRadius shackle resists cutting, prying and jacking while providing more internal space for locking versatility. Key Features:Crossbar and shackle coatings protect finishes. provide increased locking versatility for securing bicycles and scooters.X4P Quattro Bolt Locking Mechanism locks shackle on four sidesZ-Cylinder is bump-proof and resists picking, pulling or drillingTriRadius shackle creates more internal space for locking versatilityHefty 14mm hardened steel shackle resists cutting, prying and jackingRounded design and centred keyway eliminates pry pointsCo-moulded crossbar cover and double rubber coated shackle protects finishesAll-metal end caps provide additional protection against hits and drops Automatic keyway covers helps seal lock internals against the elements Locking Mechanism: X4P Quattro BoltTumbler Mechanism: Z-Cylinder, European Ty