Originally Posted by TAMPAJIM
I am 6' and use the 20", it is perfect. The bottom gap is at 2" for a very good laminar effect, the top is at my mouth level so I can see clearely over the top and the air flow is just above the top of my helmet.
As to your prior question about clear vs smoked, I tried the dark smoke, it looked great but I rejected it because it created a big blind spot out in front of the bike. On the other hand, I highly recommend the light gray--it cuts out the road glare and you can see through it even at night.
Thanks a lot I will order the 20" ASAP.
How do you like it? Do you often adjust the angle?