Power Commander Fuel Controller Honda Rancher 420Caracteristicas: Users can literally select between a Power Commander FC Map, custom built maps, or even fine tune low, mid or high rpm ranges while sitting on the bike and without plugging into a computer Standard + 10% increments from selected map settings; different ranges are available using the supplied Control Center software In addition, the Power Commander FC has the added ability to modify or change these maps on the fly without a computer