I just want four of the same size, so I can put wider tires on the front. The little tires are better for mpg, but take the potholes and bumps too hard for my taste - yes even at the proper pressure. And if I ever get into a situation where I need the anti-skid, it will be because a large truck just clipped me and I am spinning wildly out of control, I gave up the track racing 20 years ago and don't drive it like I stole it anymore. At 63 comfort is more important than hanging it out.....