[nikos2002]

normally the tracks that can support slicks or almost bald tires have a wet tacky feel to them. It depends on the amount of clay in the dirt.

If your track has a layer of loose dirt on top then something with a tread is going to be better. Unless so many cars run on it that a "blue" groove from the rubber develops. Then a lower pattern like a taper pin or work out tire might work.