Micro kart

The lower-end karts weigh anywhere from 37 to 42 pounds and have solid rubber tires of 4.5 to 6 inches diameter.

These karts usually reach speeds from 18 to 30 mph in stock form, and are primarily used by private parties for recreational riding, but are also raced in racing organizations such as the former ISA Scootercross (International Scootercross Association).

Two examples of these types of karts are the Bladez Powerkarts and the Go-Ped Go-Quads.

The larger class karts have 9-inch or 10-inch pneumatic tires and weigh in between 60 and 80 pounds.

An example of this is the BoXer MRB line, which are built to the customer's specifications.

A Go-Ped Go-Quad modified for racing
A BoXer MRB