We're new to Karting, we stated about two months ago with one Kart, and my 13 year old driving. We just bought the second Kart for my 11 year old. I read and read and have some showing me things. Asked 100 people if tires are really that important and 100 times I've been told "YES!" It's all so secretive! I'm hoping someone can point me to a book, website or something that really breaks it down in layman terms. We run Maxxis and so do most at the track. The others run Vega. Any advise and must have tools any pointers and any thing that really really breaks this down would be awesome!