In general, rubber tracks are used for this type of triangular track assembly because they are high-speed driving tracks, lightweight, do not damage the road surface, and are easy to load and unload. Metal tracks are mostly used on heavy machinery, such as large tractors, combine harvesters, and so on. Due to their weight exceeding imagination, 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!