The Oxford Beast Floor Lock is an extra strong bolt-down anchor to keep your bike extra secure.Resists all forms of mechanical attack including angle grindersSold Secure Motorcycle DIAMOND approved30mm locking pinFits 22mm chainHardened steel bodyIncludes 3 keysKey replacement serviceThe Oxford Beast Floor Lock has achieved a Sold Secure DIAMOND rating, ensuring it is able to withstand forceful and sustained attacks. This isn't an easy achievement to get, this floor lock has passed attack tests from a huge amount of different tools that are commonly used by thieves. These include pliers, bolt croppers, drills and even a 90 second angle grinder attack. This floor lock has a replacement key service. When you buy the floor lock you simply note down the number which comes attached to the keys on a metal tag. Then keep this in a safe place and then in an event that you are unfortunate enough to lose your keys it will be possible to get a new one made up. The locking pin is a staggering 30mm