Overview: Take control of your race with the AFX exclusive Tri-Power Pack. Finally! Children can race their parents, friends at different skill levels can all race together and still have a great time. New drivers can start at beginner and work their way up to Expert without the frustration of constantly crashing. Simply set the level with the flip of a switch and race! Set the maximum speed for your skill level, depending on track layout: Beginner: Cars stay on track about 90% of the turns at full throttle Intermediate: Cars stay on track about 60% of the turns at full throttle Expert: You're on your own! Power surges are virtually eliminated from one car to the next during a crash because the Tri-Power Pack features three times more amperage than any other set-based power pack.