AFCO Racing AFCOIL coilover springs are manufactured using ultra-high tensile strength wire—the finest spring material available. They are designed for extended life and consistent performance. AFCOILs are available in your choice of the well-known AFCOIL yellow coating that is recognized for quality and dependable performance, or a durable black coating that lets you run high-quality AFCO springs and still get that "blacked out" look. Tightest tolerances in the industry Designed to maintain 99 percent of their free height Engineered design resists spring lean and bow Offered in a wide variety of heights and free heights Available to fit small body shocks--perfect for open wheel, dwarf cars, and other applications that require 1 7/8 in. I.D. springs MPN: 20550B Specifications Brand AFCO Racing Part Number 20550B Part Type Coilover Springs Product Line AFCO Racing AFCOIL Coilover Springs Coilover Spring OD (in) 5.000 in. Coilover Spring OD (mm) 127.00mm Coilover Spring Length (in) 9.500 in. Coilover Spring Length (mm) 241.30mm Progressive Rate Spring No Coilover Spring Rate (lbs/in) 550 lbs./in. Spring Finish Black powder-coat Quantity Sold individually Video