Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

Create a detailed description for the following product: Expandable Motorcycle Case, belonging to category: Motorradkoffer

### Response:
This motorbike case is characterised by its versatility: within a few seconds, it can be transformed from a compact and aerodynamic piece of luggage into a large touring case with a great volume of stowage room. This was achieved by the development of a new frame structure which offers high rigidity at low weight and simultaneously requires less but more reliable components. This new expandable case is available with aluminium and carbon covers. Internally located hinges and a double backrest further increase the user-friendliness.
### End