The height of the S660 is already set low even in STD, so if you lower it more than necessary, you will sacrifice the stroke. Therefore, SPOON has developed a low-down spring that does not sacrifice stroke and further improves the high turning ability of S660 within the range conforming to safety standards. Although the cornering performance and straight-line stability have been improved, you can enjoy a wide range of activities from city riding to winding and sports driving by setting the push-up feeling in a mild direction. --- Remarks & special notes Vehicle height down amount Front -15 to -10mm, Rear -15 to -10mm Spring rate Front 2.6kgf / mm, Rear 3.6kgf / mm