Childrens Go-Kart Ride-On - Assorted (Price Per Piece) ColorsFoldable and electric: The new 6V FLEX Kart. Two to five year olds cruise the yard in great style. This cool vehicle is so easy to steer: simply push the power button on the steering wheel. At safe speeds of up to 3 Km h, driving around helps even the littlest drivers develop their hand eye coordination. Especially useful for smaller apartments, vacations or visits with Grandma and Grandpa: The Flex Kart folds down to a very small size, so its easy to