I had the Versa Trails mounted today. 27 x 11 - 12 on the rear and 27 x 9 - 12 for the front, mounted on stock wheels. Right now I have about 16 lbs of air in them, but plan to back that off a bit after the beads get seated.
We rode county roads home from the tire shop and I couldn't believe how much easier it seemed to roll and how much quieter it was. The difference was more significant than I would have imagined! I couldn't really tell much difference in power delivery, maybe a touch in third gear going up a long hill, but it didn't even come close to needing to downshift.
The kids wanted to ride dirt bikes when we got home, so I didn't take them off road yet. Here is a picture with the stock tires (with about 2200 miles on them) and then the Versa Trails.
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