In general, rubber tracks are used for this type of triangular track wheel because rubber tracks are high-speed running tracks, lightweight, do not damage the road surface, and are easy to load and unload. And metal tracks are mostly used in heavy machinery, such as large tractors, combine harvesters, etc. Due to their unimaginable weight, loading and unloading are particularly laborious, and they cause serious damage to the road surface! I believe that in the near future, triangular track wheels will be widely used in agriculture, industry, and disaster relief fields