The BMW F800GS F650GS Twin Windscreen V-stream Windshield ZTechnik Z2493 Clear Extra Tall Touring Screen take the F800GS/F650GS Twin to a whole new level of long distance touring performance. VStream windshields are designed with an unprecedented area of protection and an outstanding level of durability and optical clarity that is only available through the use of Quantum coated Lexan polycarbonate.