National Cycles widely acclaimed VStream windsheilds are now available for late model FLHT/FLHX riders. The tall and standard sizes are outstanding highway performers and offer optimum wind management and comfort. Offered with or without a vent. The low and ultra low provide the performance of the VStream with a more custom look. Made of Quantum hardcoated polycarbonate.
The typical airflow pattern of the wake from most windshields is called a van Karman vor- tex. At speeds of 50-90 mph, the air swirls off the windshield in an approximate 90-degree segment of rotation, hits the bottom of the riders neck on the way up, and curves off the shoulder at approximately 45 degrees. We gave the VStream its name for the shape it takes at the upper edge. The patented V shape is so quiet because it pushes this vortex out and away from the side of the riders head. The riders helmet then resides in still air, and the passengers environment is greatly improved as well. Of course, with small sporty screens of different sizes, the effect on the rider will vary, but there is always a notable difference in quietness and comfort!
VStream windshields deliver unprecedented durability and optical clarity through the use of 4.5-6.0mm thick Lexan polycarbonate with FMR hardcoating or our exclusive Quantumô hardcoating.