A work vehicle has steered wheels positioned forwardly of the vehicle relative to the direction of run of the vehicle, the steered front wheels having a caster angle of minus value ranging from -0.5.degree. to -2.degree.. Preferably, the caster angle is set at -1.degree.. As a result, it becomes possible to reduce a steering torque, especially a peak steering torque, and to obviate infiltrating and overshooting feels, thus providing a comfortable steering feel with respect to the vehicle.