So I have 18x8 front and 18x9 OZ wheels on the Z.

It came with 245/18 front and 285/45 rear.

Time to replace the rears.

I am thinking a 35 something like a 265 or 275.

I'd like to try to reduce the understeer so maybe run as close to an equal size on all 4s? I seem to recall some mention of the different sizes causing some of the push?

 

I would go with closest to the stock tires in diameter.

Front should be 245-40-18 & rear should be 275-40-18.

 

thnx

Is a 35 not a good idea? Discount has a kuhmo which is $190 or so, but it's only in a 35. In a 40 the cheapest tire is $320 or so.

This is a daily driver so I'd rather run a slighty cheaper ZR tire like the kuhmo.

Although it is going to see some NASA events in the winter.

I'm not sure what the best balance is.