Tire diameter increase

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Jul 8, 2014 | 08:19 PM

jennypenny

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From: Singapore

Tire diameter increase

Guys,

I am thinking of increasing my car tire size from 225/40/18 to 225/45/18

and the rears from 255/35/18 to 255/40/18

do you think there would be rubbing issues?

Thanks!

Jul 8, 2014 | 09:45 PM

Need4Speed

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From: CA

I only recommend the following size that I know wont rub

225/40/18
255/35/18

Jul 8, 2014 | 10:57 PM

SCSurf

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From: CA

Quote:

Originally Posted by Need4Speed

I only recommend the following size that I know wont rub

225/40/18
255/35/18

How about 19" configs?

Jul 8, 2014 | 11:13 PM

specONE

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From: SF, California

Quote:

Originally Posted by Need4Speed

I only recommend the following size that I know wont rub

225/40/18
255/35/18

but this is already the stock tire sizes

Jul 9, 2014 | 12:07 AM

forum429

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From: BC

There won't be a rubbing issue.
However your odometer and speedometer will be wrong

Jul 9, 2014 | 12:10 AM

forum429

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From: BC

Quote:

Originally Posted by specONE

but this is already the stock tire sizes

He meant don't mess with the size.

Jul 9, 2014 | 04:49 AM

jennypenny

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Quote:

Originally Posted by specONE

but this is already the stock tire sizes

I know, right?

What are the 19" sizes peopl are using?

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Jul 9, 2014 | 05:44 AM

4TehNguyen

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or you could go 10mm wider around for more grip. I went with 235/40/18 and 265/35/18. PSS are a lot more square than stock tire sizes so it was bigger than I expected but no rubbing

Jul 9, 2014 | 06:40 AM

jennypenny

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Quote:

Originally Posted by 4TehNguyen

or you could go 10mm wider around for more grip. I went with 235/40/18 and 265/35/18. PSS are a lot more square than stock tire sizes so it was bigger than I expected but no rubbing

May go down this route thanks

Jul 9, 2014 | 06:49 AM

#10

aeggroup

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From: NY

Hi.
Glad I found this thread.
I'd like to change from 18" to 17" wheels. Does anybody know if 245/45/17 tires will fit with no issues ?

Thanks a lot.

Jul 9, 2014 | 07:09 AM

#11

4TehNguyen

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stock ER33 are thin even though my pilot super sports are 10mm wider with the same aspect ratio, the sidewall is a lot thicker

https://www.clublexus.com/forums/8586063-post53.html

Jul 9, 2014 | 03:36 PM

#12

4TehNguyen

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yes they are the stock wheels. They put it on just like any other tire, no issues

Jul 9, 2014 | 06:25 PM

#13

jennypenny

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Quote:

Originally Posted by 4TehNguyen

stock ER33 are thin even though my pilot super sports are 10mm wider with the same aspect ratio, the sidewall is a lot thicker

https://www.clublexus.com/forums/8586063-post53.html

i calculated that you added around 3-4mm of diameter but it looks much more than that!

Maybe the width contributed to additional height?

Jul 9, 2014 | 07:20 PM

#14

4TehNguyen

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not all tires are sized the exact way its calculated, you can get two 225/40/18 and they would be different sized. Stocks seem to be on the small side. Some tires are more square on the sidewall than others.