Different Size Tires

Zis4me

Thanks I will get 2 new fronts.


you put those sizes on the 18's I might have to do this.. Since I should buy new fronts to match what I have in the back now..

Thanks

Alstann

I disagree with people saying different compount front and rear affects the handling adversely. In terms of an unsetteled feeling at highway speeds, or with quick left/right manueuvers, it's most likely that the new tire that you purchase has a softer sidewall. All the 370z's, esp. Sport package equipped 370z's, came with sporty, stiff-sidewall tires. Switching to a tire with less agressive characteristics, such as a lower rated performance tire or an all-season tire will affect the stability of the car.

Anecdotally, I personally bought all-seasons for all 4 corners of my car (Bridgestone Potenza RE970AS), and within 30 minutes of driving city and highway, I realized that my car was so unstable compared to the stock RE050A. All I did was change the front tires to Potenza S-04 (extreme summer performance tire), and leave the rears as all seasons, and the car regained it's stability at high speeds and with abrupt maneuvers.

Trust me - it's all about the quaility of the tire, and the sidewall stiffness. Different tire compounds front and rear is not a bad thing. Of course, this only applies to the stability of the car.

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Zis4me

I have the RE97AS on my rears now.. and I never have RE050A on my car now (which are super sticky tires.. and have a life span of a butterfly).. I had Firehawks... so Thats all I know.

You didnt like the feel of the RE970AS on all four?

Alstann

It honestly wasn't bad, but I knew that the sidewalls were softer, and if you do a quick jerking of the wheel back and forth, you can feel the car unsettle and shimmy. On the stock RE050A, they car just simply darted to the side with no body roll. Grip-wise though, the RE970AS are amazing. Straight line grip is awesome.

I demand a lot from my car handling wise, so I figured I found a perfect balance with stiff, grippy S04 fronts, with the still grippy and long lasting RE970AS in the rear.

Trust me - if you drive in a car with summer performance tires (preferably another Z), it will make sense. Our cars feel like they are on rails with good tires.

One thing that annoyed me about the RE970AS is that I wish they came in 305 wide.

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