The other day I and my son were playing out behind the local Home Depot. He was on the HD FXR (rather quick) and was having a little success at getting the front wheel to come off the ground. I of course was having no problem and was getting the feel of lifting the wheel. I made a sharp throttle twist and just a little clutch pop. The rough concrete grabbed just enough to make the rear wheel hop at the same time the front wheel was leaving the ground. My son said it looked like a frog jumping!