exavid
Member
On my scooter it makes a big difference in which helmet I'm wearing. When I have my modular helmet on I can run at freeway speeds with the windshield almost all the way down. With my 3/4 helmet I tend to run with the windshield quite a bit higher due to noise and buffeting. I believe it's actually caused by the helmet itself. The modular helmet is a lot smoother with a flush surface probably resulting in a more laminar flow of the air. The three quarter is no where near as streamlined so likely to be causing a lot of the buffeting itself.