Hand Wind Deflectors are used primarily to block cold air during winter riding, which makes gloves capable of withstanding older temperatures than without deflectors. Numb fingers are not good for working motorcycle controls. Deflectors are also used for deflecting stones, bugs, cigarette butts and the like. Objects hitting your hands at 65 mph can sting.
The homemade set of deflectors I made are from simple materials and were fabricated at home using basic tools. The deflectors are secured to the mirror mount using the mirror bolt itself.
These were made to fit my 2003 V Star 650 Classic.
Materials used: Aluminum sheet (I used .030' aluminum that I scavenged from a decorative lay-in (24' x 24') architectural ceiling panel; 1/8' x 1' flat aluminum bar, small nuts/bolts
Tools used: Sheet metal shears, hammer, clamping bench (I used a Black & Decker Workmate), steel pipe as form for panels, Dremel tool or file, small clamps, drill, bench vise
(Update: I know these look bulky and all, but it was an experiment. Please see the improved, revised, updated design at https://www.instructables.com/id/Motorcycle-Hand-Wind-Deflectors-version-21/)
Step 1: Make pattern and cut sheet metal
Make a pattern out of stiff paper/light cardboard. I made mine a kind of rounded trapezoid shape.
Transfer the pattern to the sheet metal. I used a nail.
Cut out the shape with sheet metal shears, leaving approximately 1/2" extensions on each side. These extensions will be folded over to create a stiffer panel. The rounded corners do not get extensions.