The 400/70R18 tire size is an agricultural tire that’s designed for use on smaller agricultural tractors and material handling equipment. The 400/70R18 tires are optimized to offer enhanced flotation and traction on surfaces like soil or sand and are durable enough to provide increased load-carrying ability. Tires of 400/70R18 size are also a good choice for various industrial applications and have the ability to provide traction in dirt, gravel, and pavement. The rubber compound of 400/70R18 tires is tuned to resist damage and prevent weathering or cracking.