Unfortunately, my bike I was last weekend stolen from the courtyard of my apartment building (Vienna). The wheel was 1.5 years old, had a value of about 750 and was chained to the castle at the Bicycle storage. The only thing that is left of the wheel and the lock was half a chain link. (See photos) This piece can be seen that a clean cut was carried out with a cut-off wheel (Flex, Dremel etc ...) The thief therefore had no inhibitions with heavy equipment to work the middle of the courtyard (it resonates very in the yard) - I think a Flex holds no lock status that you can buy. Only the time would have been probably longer.
As such, I am glad that I at least not 100 Castle at the wheel had to be my loss would have been even higher. My next castle will therefore be back in this price range. I can only advise everyone a bicycle out insurance because this is the only protection that can not be cracked ...