Rick's motorsport electronics charging Rotor.
 
Honda CB Charging Rotor, Replaces OEM # 31110-426-832

This rotor is a high quality OEM style replacement for Honda field coil rotors. The field coil is wound to stock specifications. This rotor is an easy installation and provides years of trouble free reliability from your Honda engine. Easy bolt-in installation just like the stock rotor.

fits DOHC Honda's 1979-1985