Notices
IS F (2008-2014) Discussion topics related to the IS F model

Tire sizing

Thread Tools
 
Search this Thread
 
Old Aug 10, 2014 | 03:20 PM
  #1  
zojirushi's Avatar
zojirushi
Thread Starter
Driver
 
Joined: Apr 2010
Posts: 142
Likes: 2
From: New Jersey
Default Tire sizing

Two years ago, I had changed my tires to the popular 245/35/19 front and 275/30/19 rear in Michelin PSS. Upon recent inspection, my rear tires have almost completely worn out but my front tires seem to have plenty of tread left? I've been to the drag strip once on these tires and the rest has been mostly highway miles. I've heard that rear tires wear faster on rwd cars but I was not expecting this. I had an alignment performed shortly after the tires were changed as well.

Anyway, I was considering changing back to oem size for the rear tires and leaving the front tires. Will I notice any issues with this combination? Thanks!

https://www.dropbox.com/s/r0szlh09xz...%2013%2019.jpg

https://www.dropbox.com/s/018134y1nx...%2014%2020.jpg
Reply
Old Aug 10, 2014 | 04:20 PM
  #2  
flowrider's Avatar
flowrider
Lexus Champion
Veteran: Air Force
Liked
Loved
Top Answer: 1
iTrader: (9)
 
Joined: Nov 2008
Posts: 11,261
Likes: 2,392
From: Arizona
Default

No, leaving the wider fronts on is a good idea IMO because you will lessen the understeer inherent with the ISF and the stock front 225/40/19 tire. However, if you go to the drag strip, why would you want narrower tires in the rear?

Lou
Reply
Old Aug 10, 2014 | 04:46 PM
  #3  
lobuxracer's Avatar
lobuxracer
Tech Resource
15 Year Member
Liked
Loved
Community Favorite
iTrader: (2)
 
Joined: Jul 2006
Posts: 23,070
Likes: 4,739
From: Georgia
Default

My rear drive cars wear out rears faster than fronts. My front drive cars wear out fronts faster than rears. It's just the way it typically works if you have a good alignment.

I'm running the wider fronts with OEM sized rears right now. It helps better balance the car and reduces understeer. You'll stop quicker too.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
KOKISF
IS F (2008-2014)
24
Feb 12, 2013 02:29 PM
ISBU
Wheels, Tires & Brakes Forum
4
Mar 3, 2010 06:46 AM
DSM2GS400
Wheels, Tires & Brakes Forum
1
Jul 13, 2009 10:04 AM
Lextasy89
IS - 2nd Gen (2006-2013)
5
Apr 21, 2008 02:37 PM
Wald GS
Wheels, Tires & Brakes Forum
5
Jul 28, 2003 07:57 AM




All times are GMT -7. The time now is 07:40 AM.

story-0
10 Lexus Designs That Have Aged Like Fine Wine

Slideshow: Some luxury cars chase trends, but these Lexus models look better now than they did when they first rolled into showrooms.

By Verdad Gallardo | 2026-05-06 17:58:29


VIEW MORE
story-1
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!

Slideshow: How to Get the Best Fuel Economy with a Hybrid and Plug-In Hybrid!

By Michael S. Palmer | 2026-05-05 20:54:44


VIEW MORE
story-2
10 Best Lexus Models No One Remembers

Slideshow: 10 best Lexus models no one remembers.

By Joe Kucinski | 2026-05-05 17:33:28


VIEW MORE
story-3
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing

Slideshow: diving into 4Runner TRD Off-Road Premium's pricing, performance, fuel economy, features, and amenities!

By Michael S. Palmer | 2026-04-23 13:09:18


VIEW MORE
story-4
Top 10 Lexus & Toyotas to Drive Before You Die!

Slideshow: the 10 Lexus and Toyota vehicles you need to drive before you die.

By Joe Kucinski | 2026-04-23 10:34:24


VIEW MORE
story-5
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation

Slideshow: Top 10 Lexus/Toyota models with the lowest 5-year depreciation rate.

By Joe Kucinski | 2026-04-08 12:19:06


VIEW MORE
story-6
Lexus LC500 Convertible Auction: A Preview of Rising Values?

The LC hasn't even disappeared from the Lexus lineup yet, and we're already seeing signs of an explosive market.

By Brett Foote | 2026-04-06 09:25:02


VIEW MORE
story-7
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler

Slideshow: comparing the pricings, specs, power, fuel economy, fun-factor, and features of the GX 550 Luxury+ and TX 550h+ Luxury.

By Michael S. Palmer | 2026-03-19 13:44:11


VIEW MORE
story-8
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)

Slideshow: 9 best Lexus models you can buy for half price and 1 you should avoid

By Joe Kucinski | 2026-03-19 12:01:07


VIEW MORE
story-9
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!

Here's everything you need to know about the latest NX.

By Brett Foote | 2026-03-19 11:56:59


VIEW MORE