Aluminum repaid suspension owner the BACKSIDE with this specific back suspension system system redesigned aided by the groundbreaking HS bulkheads for an expanded variety of set-up alterations. A large part suspension system system holders make sure it is feasible for installation in upright or inverted orientations, causing additional roll center areas the inner hinge pins. The downward orientation applying this suspension owner is utilized primarily for Dirt tracks. The upward orientation the suspension system system owner is utilized mainly for Carpet tracks. The suspension system system system holders permit use of both lengthy or standard suspension system system supply designs. Machined from premium Swiss 7075 T6 aluminum and black colored colored coated. Fits XB4'21