The OnGuard Pitbull U-Lock is designed for use in medium to high crime areas. It has the highest security rating a bike lock can receive - Gold Sold Secure. To achieve this the bike lock must pass advanced tests so you can be sure your bike is safe and secure when youre away. Gold Sold Secure is insurance friendly.X4P Quattro locking mechanism offers four-sided protection against a range of attacks from sawing, cutting and leverage. A hefty 14mm hardened steel TriRadius shackle offers more internal space for locking versatility without sacrificing strength and resistance.To stop your paintwork getting scratched the OnGuard Pitbull bike locks has a new crossbar and shackle coating.The Pitbull also comes with 5 laser cut keys, including one with an LED for night time locking. The bright white beam makes commuting in the dark less hassle.Key FeaturesGold Sold Secure ratingX4P Quattro Locking Mechanism for four-sided protection.Hefty 14mm (0.55) hardened steel TriRadius shackle resists cu