Lateral Force Variation

Lateral force variation tends to deflect the vehicle to the side, or laterally. Lateral force variation is based on the same concept as radial force variation. A snaky belt inside the tire may be the cause of lateral force. Test the vehicle with substitute tires before installing replacement tires.
A lateral force variation condition is rare. The best way to eliminate lateral force variation is to ensure that the lateral runout of the tire and wheel assemblies is at an absolute minimum.
The vehicle will wobble or waddle at slow speeds of 8 - 40 Kph (5 - 25 mph) when lateral force variation is excessive. This condition is usually related to the first-order of tire and wheel rotation.