Your buddy is green faced! Looks like you have a great place to ride. How is the bike handling the terrain?
Dirt and gravel roads and trails it handles well. I don't take it on anything too rough. No mountain bike trails. Although I imagine if you just keep the speed down it would get you though just fine.
Also on one of these rides, in Southern Oregon, I hit my top speed so far on my Mosh, 44 MPH (70 KPH). It was downhill of course, on a nice paved road. The bike corners well at that speed too. Although it felt way too fast without motorcycle gear on.