BMW GS Genuine Top Case With optional backrest Used on an F850GS. Also compatible with F750GS There is an issue with opening and closing. The size is variable, but closing the lid in the small state is not smooth. It opens and closes smoothly in the larger state. I intend to sell it at a low price because it is not fully functional. No claims accepted. With optional backrest. - Brand: BMW - Model Name: GS - Color: Black - Type: Top Case - Internal Structure: Variable