It is! As long as you don't get carried away and fly over the peaks to far and break stuff. A little air is ok, but I leave the big air to sand rails and bikes. You want to go hard enough to make it to the top, but try to let off the pedal just before you get there. Sometimes the other side is a steep straight down and you feel your stomach jump. It is a total rush.440_Offroader said:I've been to the dunes on a dirt bike, but THAT would be a 'gut tingling' fun, in a Ramcharger!