Features: Engineered to handle the toughest tasks and trails. Up to 2x the life of the G-Force belt. Power for hauling heavy loads across aggressive terrain. Improved durability, crack & wear-resistance.. Aramid fiber-loaded ethylene elastomer layer provides maximum stiffness and heat resistance for higher loads, higher peak torque, less heat fade and less speed loss. Trapezoidal top notch with rounded bottom cog delivers exceptional flexibility, heat dissipation and efficiency.