ABUS

The German company ABUS was founded in 1924. The name of the brand comes from the founders' name, August Bremicker Und Söhne KG. Abus started by producing traditional padlocks that they knew would be a simple and timeless product that would always be in demand.
Today, the ABUS brand is world-renowned and ABUS security products are used by everything from private individuals to large companies.

ABUS LOCK INFORMATION
Make sure to lock your bike correctly, then the chance increases dramatically that you get to keep it! Bicycle thefts have decreased in recent years, thanks to better locks and clearer information from those who sell the locks. If you just follow a few simple tips, you can, in all probability, join the growing crowd who do not get rid of their bike. 
Buy a good lock. We recommend Abus. Yes, it is actually the case that Abus is today unthreatened number one on the market. They consistently focus on developing and improving their locks, while some other manufacturers put all their energy into producing as cheap locks as possible. The thief also knows this, and he is literate - so if you make sure that it says Abus on the lock, half the battle is already won. 
2. Always lock the bicycle around a fixed object; fence, post, etc. Do not make it so easy for the thief that he can just carry away with the bike. 
Fill in the stirrup (looks like: U) as best you can with the frame, post, wheels - the more the better. For most quality locks, the jack is broken up, which takes up quite a lot of space inside the lock when you try to "blow up" it, so if the lock / jumper is filled with a bicycle and post, the jack simply does not fit. On cheaper locks, which can be accessed from the outside (saw, cooling spray, cultivator or drill), you do not have to think about filling in the bracket. It's probably just keeping your fingers crossed that helps