I had these put on my Z. Then I put 11,000 miles on it and traded it on. The dealership asked me if the tires were new. I could have easily gotten 20 - 25k miles out of them on a Z ... somethings obviously wrong with your alignment. My personal favorites as far as tires go were the Bridgestone Potenzas I ran on my Maxima, those things stuck like glue!

 

I suggest you get a lifetime alignment. Then you can take it anytime and have it checked. It usually cost a little less than 2 alignments, not a bad deal.

 

i don't know if you seen my response in the wheels and tires thread but i pretty much agree with everyone here about your alignment being off spec.

 

I had my alignment checked today. It was off very little, but the shop put it back into alignment. The springs/shocks/swaybars all checked out fine. The shop said being off the amount it was shouldn't of worn the tires down. However, I did pass state inspection with the tires on the car. I am wondering if there was a defect with the tires I bought so I am awainting a response from Tire Rack and or Yokohma. Thanks for all your input.

 

^ surprising. from those pics it certainly looked like either the alignment was WAY off, or you had worn suspension parts. you must drive very aggressively - i'm thinking donuts? your fronts look fine so it doesn't look like wear from cornering. curious...i doubt it is tire defect since they are both affected.

 

Looked like the alignment was way off to me too.