Super-compact rear upright produced from specially-formulated graphite composite product features numerous set-up choices for top & reduced roll centers. Upper roll center is adjustable via camber linkage & shims up/down & in/out. Lower roll center is adjustable via eccentric inserts in 9 various jobs up/down & in/out. The race-proven, 2-piece design enables fine-adjustment and increases durability including performance. The graphite back uprights result in the vehicle more stable and increases cornering speed including general energy associated with the vehicle. The uprights are tiny in proportions but are very strong because of the certain composite mixture utilized. Appropriate most track conditions, particularly for moderate- and high-traction tracks. The upright fits on both left & right edges. Is employed because of the #325324, #325325 or #325326 drive shafts.