Here is a Set of Cagiva WMX 500, Rear Sprocket Bolts and Nuts which were removed from a 1986 WMX 500. This is the correct Hardware for the Cagiva WMX 500 models from 1985, 1986 and 1987, and probably many other Cagiva models. This Set of Rear Sprocket Bolts and Nuts are in good, useable condition.