Check the listing for details. Oxford Magnum Motorcycle U-lock Solid Secure GOLD (170x285mm) with Bracket. Condition: New. Listed at 134.06 USD. Created with Eselt - eBay Listing Designs Motorcycle Clothing, Helmets and Accessories Created with Eselt - eBay Listing Designs Oxford Magnum U-lock (170x285mm) with Bracket 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. Don't miss any offers! We will inform you about our offers and promotions by.