For extra heavy loads requiring excellent rollability, higher speeds, and/or outdoor use, Hamilton's new DuraGlide is an excellent choice. This new wheel has 1" thick 95A of dynamically responsive polyurethane that rolls up to 40% easier than most other poly wheels. Engineers also formulated DuraGlide to run much cooler than most polyurethanes resulting in an excellent wheel for higher speed applications.
DuraGlide is also essentially impervious to moisture and our top performer in moist or outdoor applications. DuraGlide's thicker tread also reduces heat stress on the bond line. Because there's more polyurethane to compress, the psi pressure is lower and therefore the urethane endures less stress fatigue for longer lide. DuraGlide is medium gray poly molded to heavy duty black cast iron centers.