My wife and I just did 558 miles of trail riding in Utah. I have over 1000 miles on my RZR 900 now and it’s been outstanding, not one problem with it. We rode over rocky trails going over mountains 10,000 + feet in elevation. We did wide open dirt roads, and tight wooded trails. It handled everything easily without missing a beat, and the fuel range is excellent. It did lose a bit of power in the high elevations, but that’s to be expected. It always ran flawlessly though. The engine braking worked great on the steep descents, and the handling and suspension soaked up the bumps very well. What a great machine and we can’t wait until our next riding adventure.