Hello sir How are you doing! I hope that you are so fine . I'm Esmail Ahmed l'm from Yemen I really like your idea and l'm lucky when I find your channel as you know we are in Yemen in war for mor than 5 years I want to build gokart car for my son like you did, so please l hope that you can give me the measurements of the chassis of your car. Also I need to know what kind and thick of pipe that you use for building your chassis I'm waiting for your answer