2008 QuadSport® Z50 With the QuadSport LT-Z50, there's another great way to get the whole family involved in the off-road fun. With a smooth and torquey four-stroke engine, it offers performance that's ideal for beginning riders just developing their skills. As a small and lightweight ATV, it's designed for adult-supervised beginning riders ages 6 year and older. And it has a variety of features, such as smooth running CVT automatic transmission which provides easy operation allowing the rider to focus on riding instead of shifting. Plus an electric starting system to help your youngster spend time learning to ride right and that's sure to put a parent's mind at ease.