The Universal Shock Hoop Kit is long enough to accommodate a 14? shock, but not so long that you cannot use a 12? shock. The shock hoops are made out of 1035 DOM and are precision CNC bent to ensure the highest quality product. From the top of the hoop to the bottom it measures 16?, and from the weldment mounting surface to the shock eye brackets measures 13?. Some modifications may be required during installation.