When I installed it and took some test rides, I still found some buffeting remaining and thought about using different interlocking pieces because the ones that come standard with the GS don't allow for maximum leaned back position.
I ordered a set from Max BMW along with some other mounting hardware that I was still missing and find better suited than the screws and nuts I used to install the Adventure winglets.
Here are the part numbers:
- 46637673915 - locking disc left
- 46637673916 - locking disc right
These allow me to get one more klick down with the windshield and I think it did make a difference. The buffeting is slightly reduced and I have to move the upper part all the way up now to move the air over my helmet.
For $3.24 this was definitely worth it, but I'm not 100% sure whether it really is that much better. The windshield is still awesome, but I'll have to wait for a longer highway ride to actually gauge whether it helps me on those long fast highway runs. The standard windshield wasn't too bad with regard to buffeting when I angled it back, but it was loud. Noise is greatly reduced with the Givi and when the next longer tour shows that it also doesn't introduce headaches again, I'm fairly happy.
To get better protection, I think there are only two possibilities: an Aeroflow tall windshield or an R1200RT with a taller than OEM windshield. Both are not considered as options ...