The best windshield we've found for these machines, and far less expensive than the BMW replacement.
Charly tailored his 125 mpg high mileage contest winning, 155 mph SST Windshield System to the K100RT. The system consists of a molded cockpit with a built-in air balance vent to eliminate turbulence and buffeting behind the windshield. The optically clear, deeply curved 1/8" thick acrylic mounts at a 40° angle which gives less air drag and more protection in a windshield you can look over. The medium 18" height is good for average riders up to about 5'11". Taller windshields are available for taller riders.
Fits K75RT, K100RT, and K100LT. Please note your year and model in the comments section of your order.
Dimensional weight listed
Parabellum K-RT|LT Air Balance Windshield System
Produced by Parabellum of USA