Cars & Motorcycles. Wheel Balancing—also known as tire balancing—is the process of equalizing the weight of the combined tire and wheel assembly so that it spins smoothly at high speed. … This usually translates into a vibration in the car as well as some very irregular and damaging wear on the tires. Tire balance, also called tire unbalance or tire imbalance, describes the distribution of mass within an automobile tire or the entire wheel (including the rim) on