Suitable for motorcycle only conditionally

Unfortunately, so far there are no reviews. The build quality is fine. For two reasons, I think the case for motorcycle only limited suitability:
1. The transparent cover (otherwise you can not call the shell) is much too thick material. The operation of the touch screen of the device by Navis to gambling. But who wants to open for operation every time the zipper?
2. Unfortunately, there is no information about the holder and the mounting. There are only two small retaining rails for a system-specific holder. That's so stupid constructed that it can not be mounted centrally between the two handlebar mounts on the upper triple clamp. The installation is only the right or left of existing free space possible.
That's why I sent the item back.