Bordo 5900+ combines the safety of an U-lock with the versatility of a chain. Those features combined resulted in an easy-to-use, lightweight folding lock. The fact that it is made of hardened steel panels, covered with an additional soft casing to protect the bike paint, has earned it the 9th degree of safety in the Abus scale. The body of the lock, the rivets and other important elements are made of the same hardened steel as the panels. Bordo 5900+ can be used with other Bordo, locks to secure multiple bicycles, which is a perfect solution for household with more bicycles, where a few locks are available. The Cylinder Premium technology offers a high level of protection against cut-offs. Two keys included.