Depending on your riding position and how tall you are、 there is also heavy airflow behind the Adventures windscreen. For some years now we have been offering a spoiler for the R1100 GS / 1150 GS that suits most drivers. We have adapted the adjustment range and shape of the Adventure spoiler to the original windscreen. The spoiler is simply put on top of the screen and can be fitted at different angles. An additional strap holds it in place. It has an aluminium hook attached to one end and is fixed from behind. The spoiler screen is made from macrolon. The fixing mechanism is manufactured from CNC machined aluminium. With this spoiler the windscreen is approx. 8cm higher. PLEASE NOTE: For use with original windscreen only!