I want to buy use the cheapest ever rubber track source to make my treaded robot. Will cycle tires work? But I want small.
You really don't have many options; there are rubber track manufacturers, but they are generally meant for heavy equipment and even the smallest would be too large for your needs (ie, small ride-on excavators and dozers). Another possibility, but still likely too large, are tracks meant for snowmobiles (also called snow machines).
haha 599$ is cheap for you? never thought of that.