The Hunter Road Force Touch balancer measures road force variation and load force, helping you get to the bottom of the most difficult vibration and ride quality problems. The balancer identifies any low spots on the rim, applies a load roller to the wheel and tyre assembly to locate stiff spots in the tyre. The assembly can then be 'force matched' to minimise vibration. Pro-Align says that without this diagnostic tool, there's no way of knowing the best wheel and tyre position combinations. By measuring the lateral force variation of each wheel assembly, the system can also recommend the best position for each wheel to minimise tyre related drift or pull issues.