As far as most us knew, there used to be only male and female genders, with a few notable exceptions. And there used to be only 600cc four-cylinder Japanese sportbikes in Supersport racing. Oh how wrong we were… and we really don’t miss those simpler times. Now it’s a bit harder to keep track of the players, but that added complexity also has the potential to make things much more interesting. Unless you’re the guy charged with enforcing the rules, anyway. Let’s let MotoAmerica’s Sean Bice `splain it to us.