Hi Martin, and welcome. I hope you're enjoying that lovely Blackpool beach weather.
Picking the proper windshield is a personal decision, based on what you expect from a windscreen (looks, wind protection, safety) as much as anything. Fortunately, we have a lot of choices. Trust me, I tried them all, and here's what I finally concluded.
If you like the sportier look of the factory screen but want better airflow, get a CalSci
screen. It has the basic stock shape, but the cutouts allow for much smoother air flow. You can find some discussion in this thread
. It is available in various heights. The biggest downside is that it can scratch easily so you have to clean it carefully, but there is no distortion when riding.
If you want the ultimate in wind protection, then get the AeroFlow
setup. Their compound curve screen combined with their Laminar Flow Plate makes a dramatic improvement in smoothing airflow for both rider and passenger. Adding the AeroGuards takes all the wind off your hands and forearms. With that setup, I can ride in mesh gloves down to about 50°F, and I no longer get bugs splattered all up my arms.
If your primary concern is safety, then go with the V-Stream
. It is made from Polycarbonate (like the stock BMW screen) which has far superior impact resistance than the Acrylic that most other aftermarket screens are made of. I've never had a problem with an Acrylic screen, but some riders refuse to use them. Personally I found the V-Stream airflow better than stock, but not as good as CalSci or AeroFlow.
Other folks like the Parabellum, Cee Bailey, Laminar Lip options, but the above is what I recommend after trying them all.
'13 Dark Graphite Metallic K16GTLD, 24K miles and counting...
'09 Magnesium Beige Metallic K13GT, 60K miles miles and counting...
'02 Mauve Metallic K12LTC, 106K miles and sold
BMWLT#145, IBA# 366, MOA# 111996, SCMA# 24032
All lower 48 states plus Alaska on the K13GT in two weeks . . .
Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...