I have a 2012 ISF with the stock rims and wanted to confirm that the 245/35/19 and 275/30/19 setup will fit on my car and is the correct size as I'll be upsizing from the stock size tires. I have swift springs on the front only, rear is stock. Will I have any rubbing? Thanks.

 

You should be fine. I've seen guys that are running the same tire setup lowered on Swift springs and 15mm spacers and still don't rub.

 

245/275 will fit fine. I personally lean towards stock tire sizes but that's me. I didnt like the experience with 245/275 on my 08 rims. The handling seems somewhat out of place compared to stock 225/255.

 

Because the 2012 wheels are 8.5" & 9.5" (1/2" wider) than the 08-11 wheels the 245/275 is the de facto standard most guys run (including me) you'll be fine and no rubbing with swift springs.

 

Thanks. The aspect ratio I listed above are correct when sizing up right?

 

Yes, those aspect ratios are correct and what I run as well.

 

FYI, if you're looking to maximize front end grip to eliminate more understeer, the 255/35 also works well on the 2012 front wheels. I've been running the 255/35 & 275/30 combo since late 2015 (including 10 track days), and I love it.

-Mike

 

You could run 255/35/19 and 285/30/19 on the ½" wider wheels.

Lou

 

what about 285 on the rear with 08 rims?

 

Probably too much for 9" wheel. Tire sidewalls will bulge. Lose stiffness and get more of a boaty feeling on hard turns

 

I was going to do 275/30 on my stock 08 wheel but discount tire suggested the 285/30 so I went with that option. I have not had any issues. I decided to go with the wider tire in case I ever purchased new wheels which I did which should be here in a few weeks.

 

When I was running stock wheels on my '08, I ran 285/30s on the back. Many members here gave me a lot of grief about it, and some, who tired it, complained of mushy handling. I experienced no issues with the 285s. I ran Bridgestone S-04s. I'm now running 255/35/19 and 295/30/19 S-04s on 9s and 10s - RCF wheels.

Lou

 

I just put on 255 front 285 rear without rubbing. I have a 2012 with stock wheels, and lowered on Swift springs front and rear.

 

Wow, good stuff. No rubbing on bumps? Reverse? Nor hard cornering? Do you have spacers?
I want to go with 15mm spacers without rubbing (I'm lowered front and rear with Swift springs) so I believe I'll stick with 245/35 & 275/30. Don't want to deal with rubbing of any kind on stock wheels.

V.

 

I am running the same setup. Definitely improves stopping distance and overall front end grip. Also gets the car closer to neutral from the stock heavy understeer.