Xray XB8 hard composite rear upright

From Xray and suitable for the XB8, XB8E, XT8, XT8E, GTX8 & GTX8E is this lightweight yet ultra-strong rear upright moulded from special hard composite material. Features larger outside 8x16x5mm ball-bearing for increased reliability and life-span and which makes the rear of car very stable. It also helps improve bump absorbing and handling in hotter conditions.

Source: Xray [teamxray.com]