Tire setup

Reply Subscribe

Thread Tools

Search this Thread

Mar 17, 2015 | 01:31 PM

theoryguy3

Thread Starter

Intermediate

Joined: Nov 2013

Posts: 274

Likes: 14

From: NY

Tire setup

So I'm due for new tires and was wondering if I switch my current staggered setup on my 14 IS350 AWD with factory rims to one of the below options:

Option 1) All four tires at P275/40ZR18

Option 2) Fronts: 225/40/18 Rears: P275/40ZR18

Please let me know. Thanks.

Mar 17, 2015 | 01:41 PM

criticalgt

Pole Position

Joined: Jul 2014

Posts: 295

Likes: 12

From: Glenview, IL

Running 275 on 8.5" wheel would look ridiculous...do not do it! Not to mention it won't be functional...

Stick with the factory size on the factory wheels...

Mar 18, 2015 | 02:17 PM

Imprezario

Lead Lap

Joined: Sep 2014

Posts: 434

Likes: 5

From: Moscow

Quote:

Originally Posted by criticalgt

Stick with the factory size on the factory wheels...

True words. Wanna wider rubber - get wider rims.

Mar 18, 2015 | 09:47 PM

forum429

Driver

Joined: May 2014

Posts: 184

Likes: 6

From: BC

You can not run 275/40R18 on the rear on a AWD vehicle.
You need to maintain your OD as close as possible.
There is a 1" difference between 275/40R18 and 225/40R18
You will destroy your diff.
You can run 265/35R18 on the rear with 225/40R18 but not 275/40R18.
You can run 275/40R18 all around because its the same OD.

Last edited by forum429; Mar 18, 2015 at 09:56 PM.