Originally Posted by
BlazingPedals
Adding a visor only helps if you don't plan on going very fast - otherwise the airflow is such that it's nothing but a parachute which constantly pulls the helmet up and back, no matter how tight the straps are.
Sorry to be contrary, but that doesn't match my experience. Unless, of course, 45+ mph doesn't qualify as "fast". My Bell Influx, with visor, stays put just fine regardless of speed - no sensation of lift or anything. Maybe it depends on the helmet.
Scott P
Bend, OR