Originally Posted by MORRWheels
Heath, we kept the rear lip to a minimum in order to shave weight. We were able to very significantly reduce the weight of the rears with a few changes to the wheel in order to keep them under our weight targets. Lastly, we were decided to make the 20" weigh only a tad bit more than our 19" in order for to get the best of both worlds: the aesthetics of a 20" without the loss in performance a 20" usually brings.
As far as concavity goes, the 20" is just as concave as the 19". We'll have our lead engineer chime in on this further
I think that was a smart design choice to look at form and function... these are beautiful... congrats guys.