Gilles Tooling Brake Fluid Reservoir Cap BRC-18-B Black Gilles Tooling Black Gilles Tooling brake fluid reservoir cap BRC-18-B. See if it fits your bike. Aprilia RS 457 Aprilia RS 660 Aprilia Tuareg 660 Aprilia Tuono 660 BMW F 700-800 GS BMW F 900 GS BMW F 900 R BMW F 900 XR Ducati Desert X 950 Ducati Hypermotard 698 Ducati Hypermotard 890 V2 Ducati Hypermotard 950