CNC-machined aluminum right back shock human anatomy for XB8 Zero Rebound Shocks, produced from premium lightweight 7075 T6 aluminum. The special design with this shock human anatomy and top limit permits installing a ribbed shock membrane on the top related to surprise human anatomy in the place of traditional installation into the upper limit. Setting up the ribbed membrane layer on the shock human anatomy allows additional oil to leak down, and alongside a shock cap vent opening and adjusting screw enables the adjustment related to degree of atmosphere (rebound) before the desired zero rebound is achieved. The oversized big-bore shocks feature 18.5mm O.D. surprise systems, externally threaded with a variable collar for quick & easy spring preload adjustment. The shock numbers are covered in a titanium color. Group of 2.