t2011IS250

Hello Forum,

Are the front tires the same size as rear tires on the rwd lexus is250 2011?

thanks

kind regards

t2011IS250

Gville350

iTrader: (10)

Judging from the pics from your other thread, you have 18" wheels. Then to answer your question, no...staggered front/rear tire sizes. 225/255.

t2011IS250

thanks appreciate it

NYKnick101

^^ What he said because the wheels are 18x8 and 18x8.5.

Unless you have base model 17's which only came in one size 17x8

t2011IS250

I was referring to the size of the wheels of the is250 in this thread: https://www.clublexus.com/forums/is-...-the-rear.html

So the rims in the pictures in the above referenced thread are either 18x8 and 18x8.5?

thanks

kind regards

t2011is250

t2011IS250

so the is250 has stock 225/40/18 tires front
and 255/40/18 tires in the rear. Wouldnt this be staggerred?

WylieKylie

iTrader: (2)

Yes. Wheel widths are staggered as well. 8" on the front and 8.5" on the back.

t2011IS250

oh ok i was confused there about that when I heard no staggered sizes.thanks

Jeff Lange

iTrader: (1)

Stock RWD IS250 wheels are the following:

16x8.0" Wheels with 205/55R16 All Around (Canada 2006-2010 Only, Not used on any USA-spec models)
17x8.0" Wheels with 225/45R17 Front and 245/45R17 Rear
18x8.0" Front and 18x8.5" Rear with 225/40R18 Front and 255/40R18 Rear

So there is a non-staggered wheel, non-staggered tire setup, a non-staggered wheel with staggered tire setup, and a staggered wheel with staggered tire setup for the IS250 RWD. The IS350 RWD drops the 16-inch option and the AWD models all came with non-staggered 17x8.0" with 225/45R17 all around.

I hope that helps.

Jeff

nitrotang

iTrader: (2)

Think you may have just typed the bolded as a mistake

Jeff Lange

iTrader: (1)

That was not a mistake. It is what RWD IS250 models with 17" wheels came with for wheel and tires, it is correct.

Jeff

NYKnick101

really? Why would they put a 225/255 on wheels that are not staggered?

WylieKylie

iTrader: (2)

They don't put 225/255 on non-staggered wheels, they put 225/245 on non-staggered wheels. 225/245 on an 8" wheel are within manufacturer specs.

Jeff Lange

iTrader: (1)

It's really no different than doing 225/255 on 8.0x8.5. You've got 30mm wider rear tires on a wheel that is only 12.7mm wider.

225mm width on 203.2mm (8.0in) wheel = 21.8mm Overall Bulge (Stock Front on 17"/18" RWD setups)
245mm width on 203.2mm (8.0in) wheel = 41.8mm Overall Bulge (Stock Rear on 17" RWD setups)
255mm width on 215.9mm (8.5in) wheel = 39.1mm Overall Bulge (Stock Rear on 18" RWD setups)

Difference between the 225/245 17-in and 225/255 18-in setups as far as rear tire setup goes is 2.7mm overall, or 1.35mm difference per sidewall. It's pretty much an identical look for the front/rear difference on the car. Which is probably why Lexus did it.

Asking why they would put that much wider rear tires (255) on a wheel that is only 0.5in wider is really just as valid, but you'd have to speak to the vehicle engineers/designers to find exactly why that is.

Jeff