What should I say to the big castle? U-locks are cut under the safest representatives which can be found, because they form only a massive form. Unfortunately, this means that you sometimes just can not connect to a lamppost his bike and the lock itself also weighs a lot. So if you want to stay more and irrespectively aschließt his bicycle at various points, which a lock should be ordered with more reaping. But if you connect your wheel to a bicycle primiär, then I would recommend this castle definitely.
