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Tires     The right tires are a must-have for monster trucks because traction is key. These tires must be 66inx43inx25in. Many teams hand cut their tires in order to cut back on weight and customize the tread. They are kept at very low pressures, between 12 and 20 psi depending on the racing surface. This way, the weight of the truck can be spread out over a larger area in order to get more traction. With such massive tires, the engine must supply a huge amount of torque in order to rotate them. This isn’t the only issue the tires cause. Being so large and at a low pressure, they become extremely bouncy. This causes the trucks to bounce around uncontrollably which is exciting to watch, but difficult to drive because of they become unpredictable.