The Magnum is an ultra-strong U-lock. It boasts a high security, independently approved 16mm shackle lock with a hardened steel construction and has undergone rigorous testing, achieving Sold Secure GOLD, ART 4*, SBSC and FG certification.The Magnum has a key replacement service. When you buy your Magnum, simply note down the number which comes attached to the keys on a metal tag. Keep this in a safe place, then in the event that you are unfortunate enough to lose all your keys, it will be possible to get a new key made up for you. - Sold Secure Powered Cycle (Motorcycle) GOLD - 16mm shackle - Ultra-strong double locking mechanism - High tech pick-resistant locking system - Saw, bolt cropper and drill resistant - 2 x keys - Lock head dust cover - Dual use product - Comes with carry bracket for cycle use - 5 minute attack tested - 1.2m cable included (Duo model only). Use the U-lock to lock the bike to a fixed object (e.g. Oxford anchor, fence, lamp post, etc.) to prevent it from being ridden or pushed away. The cable can be used to secure the component parts such as wheels. - Also available without the cable in two sizes 270mm and 340mm (External length)