Painting rubber tread tracks

How would you paint tracks to a famo? the famo has an extra tread that is rubber. ANy help?

First wash them good with soap and water. Prime them (I used an acrylic primer in a rattle can), then paint. I just did the rubber tracks on the Tamiya T-34 for the Mad Build and they came out pretty good (if I do say so myself). [8D]

I first painted the tracks with a dark earth color. I then individually painted the rubber pads with Polly Scale grimy black color. HTH.