A question that comes up is why 19.5's cost what they do. By means of comparison, we help explain the quality and performance difference between 16" and 19.5" tires. When you factor in the in the improved fuel economy of 19.5s (1.5/mpg avg.), replacement costs similar to 16" 14PR, longer tire life of 80K+, 7 year warranty, and drastically reduced sidewall flex stress when turning and maneuvering, 19.5's are really the most cost-effective option for heavy trailering needs that put on significant annual mileage.