I don't know if this will of use to anyone thinking of buying the BMW Dakar screen for their F650GS but I did and have been fairly pleased with it. I found wind buffeting  good (I can ride up to about 45mph with my visor up now, only about 25-30mph before). The one thing I did find was that at high speed (70-80mph)  it seemed to create a vortex type of swirling just in front of my chest, which is OK until it rains and then I get water coming UP under my visor.

On the whole though I am very pleased with it and have a lot more protection than with the stock GS screen, also very easy to fit using tool roll tools. Tony Still tstill@btinternet.com