Features: This suspension utilized a conventional shock absorber rather than factory electronically controlled one and a vehicle easy to control according to the driver's intention. Using the high rate spring provides a smooth ride without too stiff feeling and at the same time helps to translate a feedback from tires. Adjustment type pillow upper allows to adjust the camber angle. The billet aluminum upper plate is used at the rear. This is for weight saving without losing the necessary strength. The straight wound spring is used at both front and rear allowing to easily change spring rates Spring rate [N/mm(kgf/mm)] F=137(14)/R=176(16) Spring Length (mm) F=150(straight wound only) R=200(straight wound) Height at factory (Upper-Lower) RZ: F=-25(-14 to -61)/R=-25(-5 to -72) SZ-R: F=-17(-6 to -53)/R=-26(-6 to -73) SZ: F=-30(-19 to -66)/R=-31(-11 to -78) Upper mount F=pillow/R=pillow