Lightweight yet ultra-strong rear upright molded from special HARD composite material. Features larger outside 8x16x5mm ball-bearing for increased reliability and life-span. Makes the rear of car very stable. Improves bump absorbing and handling in hotter conditions. Fits XB8, XB8E, GTX8'19 and newer, GTX8E'19 and newer, XT8'19, XT8E'19 |