Firestone Transforce HT 9.50R16.5 121/117R E OVERVIEW The Firestone Transforce HT is a commercial-grade light truck tire that s perfect for service trucks and route vans. The Transforce HT is designed with a steel belted construction polyester plies and a jointless spiral wound nylon cap layer as well as a durable high-modulus rubber compound and single strand bead wire. Additionally Transforce HT delivers true all-season performance thanks deep circumferential grooves and an all-season pattern that s also computer tuned to keep road noise low.