Tires will balloon. Now, If they balloon while you are racing, that's not good. Means lack of traction or car is over powered or over-geared. Wheel spin which created ballooning of the tires just gonna get you nowhere fast while overheating the motor, wearing the tires and draining the battery. In the basher truck I used to put duck tape inside the tires and in my racing cars just poke a hole on either the wheels or the tire so that the tire comes back to normal shape if it happens to balloon.