I was wondering if there is any forum experience with using the P500 for high altitude trails with two adults onboard and a couple hundred pounds of camping equipment. I am not looking for high performance, just trying to determine if it is capable at trail speeds. Years ago I rode a Honda XR250 through the mountains of Colorado and Utah and anything about 9000 feet was like riding a way overweight 125. Back in the day all bikes had carbs so I am hoping fuel injections has helped a lot.