The compensator arm is an important arm that supports the rear toe angle. This arm is made into a pillow and the toe angle can be set finely by attaching a turnbuckle to the arm itself. By doing so, the degree of freedom of alignment adjustment can be expanded and the desired handling can be achieved. Even when driving on a circuit or other sport, you can make more detailed settings, so you can get even faster speeds that match the stage. It is possible to eliminate judder by making the bush part a pillow ball and to reduce unnecessary alignment changes at the time of suspension input. When used with the adjustable front and rear upper arms, more ideal settings are possible.