Race?

depending on your go kart racing frame and you skill level you should choose a class or category in which you feel is best for you. These classes are divided up by the size of your go karts engine.

Racing categories

There are many different classes or formula in karting.

International

The Cik-Fia sanctions international championships in Kf1, Kf2, Kf3, KZ1, KZ2 and Super kart. These are regarded as the top level classes of karting and are also raced in national championships worldwide. The World chapionship (KF1) is decided here. The current 2008 World Champion is Marco Ardigò from Italy.

CIK-FIA categories:

• KF1 (the top level), KF2, KF3, and KF4 (so-called “basic” category). All are using the same water-cooled no-gearbox 125 cc “long life” two-stroke engines with starter and clutch, each with different technical specifications (mufflers, air boxes, carburetor, rev limit etc...).
• KZ1 and KZ2, both 125 cc gearbox categories.
• Superkart, a 250 cc gearbox category.

these categories should give you a basic idea of how the classes in go kart racing work. From here you should be able to choose what class your want to be in.

but you can always go out to your local indoor go karting place and not worry about any of the kart classes because all the karts will be the same.