Ironman I-109 7.50R16LT/14 122/118N93354 7. 5 16 7516 Ironman I 1097. 5 16 14 The Ironman I 109 tire is an all position rib tire for both the steer tire position, and on trailers that work in regional service. Good for tractor trailers or straight trucks, the Ironman I 109 tire features a five rib design for long mileage and shoulder wear resistance from the crown of the road on the interstates, as well as frequent turning and backing into loading docks and on city routes.