Tire Matching 2006 Is-350 Will It Work?

djrobsd · October 1, 2011

I have the 225/40ZR18 on the front and 255/40ZR18 in the rear. I'm sick and tired of replacing tires every 15-20k miles. Can I replace all 4 with 225/40ZR18 (or 255/40ZR18), or will they not fit on the wheel? I would love to be able to rotate my tires and get the most life out of them....

1990LS400 · October 1, 2011

The handling could get weird if you rotated the tires since the rear wheels are wider than the front ones. If you stay with 18" wheels and want to rotate them, you could get another two wheels that are the same size as the front wheels or two the same size as the back ones.

An alternative would be to get a set of the 17 x 8.0 inch wheels that were the standard size front and back and then use 225/45R17 tires all around. I've seen posts from IS250 owners on forums who wanted to trade their 17 x 8 wheels and tires for the optional 18 x 8 (front) / 18 x 8.5 (back) wheels.

djrobsd · October 1, 2011

The handling could get weird if you rotated the tires since the rear wheels are wider than the front ones. If you stay with 18" wheels and want to rotate them, you could get another two wheels that are the same size as the front wheels or two the same size as the back ones.

An alternative would be to get a set of the 17 x 8.0 inch wheels that were the standard size front and back and then use 225/45R17 tires all around. I've seen posts from IS250 owners on forums who wanted to trade their 17 x 8 wheels and tires for the optional 18 x 8 (front) / 18 x 8.5 (back) wheels.

Thanks, I just got a good lesson in tire sizes. :) I think if I have to change wheels out I'd go for the 17 x 8 since I've read on some other forums that the noise/handling are dramatically improved with the smaller wheels. As it stands right now my car is so loud on the freeway... It ruins my experience of driving a Lexus.