In real world testing, the Radial Trail HD showed a 10% improvement in tire life compared to its predecessor, giving you a longer lasting trailer tire. Building the toughest trailer tire means we needed to engineer the inside to be as strong as the outside. Every component in the Radial TrailHD was updated to outperform the competition. Every component in the Radial TrailHD was optimized to reduce rolling resistance � extending tire life and increasing durability. So, whether you use your trailer for work, play or sport, the Radial TrailHD tire is the toughest and safest radial trailer tire on the market giving you increased peace of mind and protection.