Alliance VF AgriFlex 372 650/65 R38 169D TL Agriflex+ Very High Flexion (VF) tires are designed with increased flexibility in the sidewall to enable the tire to carry up to 40% more load at the same pressure as a standard radial tire. They can also carry the same load as a standard radial tire with up to 40% less air pressure. This reduction in air pressure creates a bigger footprint for more traction, less slip, better fuel efficiency, and decreased soil compaction, resulting in more yield.