The suggestion is for better rotor performance getting rid of excessive heat,shape the cooling fins so they are pumping the air flow, in addition design the wheel spokes with the same idea shape, so it pumps the air towards the rotor and caliper.
Anthony M 08/12/2012
This is a great idea on the Ford site. Both of my 2011 Fords have warped front rotors. (What do they make them out of these days). Both 2011's , an F150 and an MKT. Shopping for front rotors for both. Hoping to find a manufacturer that makes rotors that last. Any suggestions?