Training wheels come off when a toddler is ready, which lets the same bike carry a child from first rides to balanced ones. A 6V 15W motor holds the speed to 1 to 1.6 mph, slow enough for a supervised driveway, and one button starts it. The control panel adds music, story and FM modes, and an LED headlight lights up with the rest. The seat sits 11.5" from the ground with handlebars at 20", and the PP body measures 30" x 17" x 23". Suits ages 18 months and up to 55 lbs. Net weight 11 lbs.