Fixing the lock in the carrier is quick and easy. This allows you to easily transport the lock on the bike frame while riding. The U-lock can be both round or square and attachment is flexible. Whether you want to mount the bracket vertically or horizontally on the frame tube, both are possible. Thanks to the practical holder, you no longer have to carry your bike lock in your backpack or bag. Universal shackle lock holder for many ABUS U-locks. The holder is suitable for U-locks with a square or round shackle. Allows the lock to be transported on different places on the bike. The holder allows for vertical or horizontal attachment to the frame. Suitable for U-locks 540, 470, 460. Fast and intuitive handling. Suitable for frame diameters from 20-55 mm