They made a huge difference in reducing buffeting and wind noise on my Gen1 bike.Oddly enough, the mirror extensions reduce helmet buffeting. I don’t know why, but it works. I also like my mirrors a little bit higher up.
I originally put them to see better past my wide shoulders and was pleasantly surprised at the difference in wind management.
Widening them allows the air that comes off the mirrors go by your helmet instead of hitting your helmet.
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