I have a half worn set of Z1 Star Specs on the front of my car and my rears are finished. Of course, they don't make the Z1 anymore so the questions is has anyone run Z1s on the front and Z11 on the rear? It looks like the Z11 has a bit better traction which would tend to make the car push (safe) but thought I would ask first.
Another questions is that the Z11 are on closeout at the Tire Rack so I assume they are being discontinued? Anyone have any details?
My other option, of course, is to replace all four or put four new R1Rs on but I am a bit concerned about the 140 tread wear rating.