Kal Tire Mining Tire Group is re-launching TTT—the True Tire Technology system that will considerably improve how mine sites monitor tire temperature and pressure in order to increase safety, tire life, fuel efficiency and mine productivity. It is a well-known fact that tires are one of the top three operating expenses of a mine site. When they are running at optimal pressure—only then will a mine site experience maximum value when it comes to savings and productivity related to this expense.