Top cases on bikes protect sensitive goods from moisture, dirt and stone chippings while providing plenty of storage space. They are suitable both for the storage of valuable items such as notebooks or photo equipment on the way to work, as well as for the stowage of the bicycle helmet during the break of a bike ride. In addition, you can store the bicycle helmet during shopping and afterwards the purchases in it. Because the boxes are lockable with a key, your belongings are perfectly protected against theft. The boxes can be attached easily and quickly, be it on the luggage rack or on the handlebar. Due to the plastic material, the cases are extremely robust and at the same time easier to remove from dirt than bags made of fabric or leather.