The rear suspension structure and shape, which is the biggest weakness, causes the body's rigidity to be insufficient, resulting in unstable rear behavior. The same is true for FD2, FN2, FIT, CR-Z, etc., but the basic design is the same as that of a minivan in order to make the interior spacious, so this is simply insufficient for sports driving or circuit driving. With the genuine rubber bush mount, the rubber bush twists, twists, and distorts back and forth, left and right, and up and down every time the damper strokes, stopping the initial movement of the damper and inducing sluggish movement. As a result, the rear feels restless and jumps up and down, which gives a sense of discomfort. The reason for this is that the rear damper is only fixed to the body at one point, the rubber bush of the genuine upper mount. Therefore, with the genuine rubber bush mount, every time the damper strokes, it moves up and down and left and right, slowing down the initial movement and stopping the damper stroke. As a result, it has a negative effect on the initial braking. Strengthening the suspension or increasing the spring rate will worsen the symptoms. This rear pillow upper mount replaces the rubber bushings that take the most strain with pillow mounts, allowing you to directly feel the initial movement of the damper and the rebound movement of the bumps on the left and right sides of the damper. By additionally attaching a dedicated rear tower bar to the pillow mount body, the body rigidity of the rear suspension part can be made stronger. This is because the pillow mount is firmly fixed to the body body, allowing the tower bar to fully demonstrate its performance. These two parts also make a great contribution to the ride comfort. By increasing the body rigidity and allowing the damper to move directly, the initial movement of the genuine damper moves smoothly, eliminating the unpleasant feeling of being pushed up and improving the ride comfort. The rear pillow upper mount and rear tower bar are a way to greatly improve this weakness.
