Magnum have been making the finest security systems for more than twenty five years. When you want to make sure your bicycle remains exactly where you left it, then Magnum locks is the kind of lock you need. To keep a bike in a public, high-risk area, Magnum locks is first choice. The Magnum team continually look at new ways of making our world more secure. The Magnum Bicycle lock range is tested, approved and certified by European testing organisations.