So these carbon fiber wheels are about 20lbs I heard. They say that's 37 percent lighter than the stock aluminum. (I read this in an article.) So this means the stock aluminums are 31 lbs? A Klassen ID MS03 19x11 weighs about 22 lbs. They are probably about the same price though as the carbon fiber wheels.. I guess I thought the carbon wheels would be very light even in compared to custom monoblock forged wheel. I will certainly look at a Klassen ID or similar wheel for a track setup and let the stock rims be my "all season" setup.