This quick nut will fit all model balancers with 40mm X 3mm shaft. To check, measure the shaft diameter (40mm) and the thread spacing (3mm) on your balancer shaft. Thread spacing is the distance of one thread and one space; for example, the distance from the left edge of a thread to the left edge of the next thread.
NOTE: YOU MUST CHECK THE SHAFT THREAD PITCH TO SEE IF YOU HAVE A 3MM OR 4MM BEFORE ORDERING.
Package includes 1x quick clamp wing nut, 1x pressure cup and 1x protector ring.