"Micro-Swirl™ trim is great. I have a 2007 BMW F650GS and live in the desert South West where the riding temperatures reach 105 degrees and above in the summer. The F650 has a heat problem that forces hot engine air out along the bottom of the frame and burns your inner calf and can burn the the lower inside thigh. I placed the trim along the frame down tube on the leading edge and it forces the hot air flow down; it has made a huge difference and a more enjoyable ride. Your leg can still get hot but I haven't had the burn. I have told my two 650 riding buddies about it.
" R. Haywood, Nevada
"(Donzi 22 Classic) ...moved the "envelope" up high enough I now can hear the exhaust instead of wind noise. It is real nice with the thru prop switched on. Cosmetically, I think it looks better than the wind wings, (but they won't fit on my windshield frame) but I am sure they will do a better job of wind management. Overall I would give the product an 8 out of 10. I am using it an application it wasn't really designed for. Motorcycle windshields are a lot closer to your head. It eliminated the wind noise and took the wind out of my eyes. I am pleased with the results." K. Ciocci, Connecticut