Used these on a 15,000-mile trip on a thumper with thousands of miles of gravel roads. The ribs are very soft which rewards a light touch on the bars. The vibrations from the single cylinder were never a problem. Just bought another pair for another MC.
I thought of giving them 4 stars for style because I prefer larger-diameter grips for my long hands. These are larger than many grips, but not as large as a few others. Overall, though, I couldn't ding them for that; they're excellent grips.