First of all, we recommend checking your state laws and guidelines to determine legality regarding engine size. Next, grab a measuring device and measure.
The dimensions are found on the specs page of every GoKart & ATV for accuracy. Also, we have labeled each unit, Mini, Mid, Mid Medium, Mid Full and Full Size, to give you an idea of size. The seat height is also mentioned to give you an idea how high you would sit on the ATV.