This is our CNC’d magnet rotor that fits original Fairbanks housings as well as our billet housings. The advantage of the Joe Hunt magnet rotor is that it utilizes neodymium magnets that never loose their charge, so you’ll never have to worry that your magneto isn’t operating at its optimum performance level. Another advantage of the neodymium magnets is that the output amperage is increased over a stock rotor, so you not only get the piece of mind that you mag is performing at it’s best, but you also get a hotter spark at the plug.