Aluminum straight back Lower Suspension Holder BACKSIDE for semi-split bulkheads provide an expanded selection of set-up alterations. The aluminum suspension system holders function incorporated suspension system Settings™ (I.S.S.) allowing for fast & easy suspension system system system geometry environment. Making use of eccentric suspension system system bushings put into aluminum suspension system system holders – plus extra suspension system system shims – the XB8 suspension system system geometry is completely modified within moments. Machined from premium Swiss 7075 T6 aluminum and black colored coated.