PURPOSE: To change the direction of a wheel in a toe-in direction, depending upon a lateral force applied thereto, and improve turning stability.

CONSTITUTION: Suspension links 2 and 2 have the forward ends connected to a body in such a way as capable of oscillation about a turning center 3, and the rear ends thereof are joined to both of right and left sides of an axle 1. A section denoted with a numeral '10' is shaped to have a circular arc form about a turning center B located at the rear side of the turning center of a wheel 4. This section 10 houses an elastic body 13, and is constituted as a guide comprising a guide outer 11 fitted to the suspension links 2 and a guide inner 12 fitted to the axle 1. When a lateral fore acts on the wheel 4, the guide inner 123 moves along the line of a circular arc and, therefore, the direction of the wheel 4 changes in a toe-in direction.