I tired to see if I could buy a second set of wheels, but was told that they won't be selling second sets for several more months. Further I was told they don't have any pricing setup for buying extra wheels. I was going to get the aero wheels and I hated it, but I ended up getting the 19" wheels with my SigPerformance too, because I think I will be happiest with the ride quality, longer tread life and cheaper replacement cost with the 19s