Here is an excellent value; our set of two solid rear wheels (one with 6900Z bearing) - 4 1/2" D X 2 1/2" W for the Razor Ground Force Go Kart.
The Ground Force is unique in that only one wheel is a true drive wheel; its rear sibling having a free-wheeling bearing. Our set of two wheels has both together at one low price.
Please note that the bearing for the rear wheel is a different size than on the visually similar front wheels. They are not interchangeable.
Will these fit the crazy cart 2013 razor-front wheels?
As these are only compatible for the Razor Ground Force Go-Kart, they will not likely work on a Crazy Cart. To find the wheels you need, please provide us with the serial number of that Crazy Cart and we are happy to check if we have wheels that will most certainly work on it.