The F 650 CS has a multi functional "Stuff Bay" where normally the tank would be. As not everyone uses this to store a helmet or a music system we have come up with a cover that fits over the compartment. The Bay Cover is made of plastic and reinforced for rigidity. The silver plastic has a high gloss top layer with a top quality painted-look finish (paintable as well). A tank cap-like black lock allows small items to be stored inside the compartment, and the CS looks more like a "normal" bike.