The red wire stators are the like the original ones that Novak first made. They are slightly bigger wire as one is American standard and one is Japanese standard sizes. I am sure Novak2 will be along to correct that if its wrong. It would make sense as to why you have to gear down but 5 teeth is a lot more than I would have thought. In oval the red wire's are faster it seems. They do have less resistance than standard copper colored wire stators.
EA