I have had my 2014 Ace for a month now. I live in East Tenn. and have not found anywhere it will not go. When I bought the machine the dealer told me I would need to do most of my riding in LOW gear. He said to staying in LOW gear below 20mph would extend the belt life. My concern is that at 10 to 15mph my rpm range is between 6,000 to 7000 rpm's. That seem's to be quite high for a four stroke engine to be turning for hours at a time. Maybe this new engine is designed to operate at these rpm's. Any thoughts?