The hardened 13 mm square parabolic bow drives sweat onto the forehead of even experienced thieves. The double locking of the shackle in the lock body and the ABUS X-Plus cylinder also contribute to this. The automatic locking of the keyhole also increases the long-term theft protection and protects against dirt and corrosion. If you don't need the U-lock on the road, it can be stowed on all 28-36 mm diameter tubes using the supplied holder.