Complete fully-adjustable aluminum rear upright set features rear aluminum hubs, carbon fiber expansion plates for camber link alterations and eccentric roll center bushings for lower roll center adjustment. The eccentric bushings enable two different upper/lower roll center modifications as well two different inner/outer roll center roles. The upper roll center place provides more traction in most conditions whilst the reduced roll center position makes the car more free in corners and is recommended for high traction conditions. The composite eccentric bushings can be simply exchanged when worn in the dusty conditions to reduce maintenance costs. The top of carbon fibre extensions are machined from lightweight carbon fiber to lessen the extra weight and have 3 camber link positions. The aluminum uprights are stronger hence ensuring greater reliability and increased life time. CNC-machined from high-grade Swiss 7075 T6. The entire set includes outside 8x16x5mm ball-bearings and internal 13x20x4mm ball-bearings.