The Effect of Oversize Tires on Vehicle Dynamics and Crash Risk of Light-Duty Trucks
Aftermarket body and suspension lift kits and oversize tires can be installed to improve step-in height, customize the appearance or enhance the utility of light-duty trucks (“raised vehicles”). The modifications could considerably increase the center of mass height, kingpin offset and tire rolling tire diameter - changes that could interfere with the integration of original components and subsystems. The alternations could lower braking efficiency, increase rollover propensity, affect steady-state handling and transient cornering behaviour, raise the risk of suspension and wheel component failures, and change the geometric alignment of primary energy-absorbing systems. A study was conducted to examine the effect oversize tires may have on the crash risk of raised vehicles.