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The sizes you list are certainly the closest to OE rolling diameter. I can tell you that a 19x9 with a 45mm offset will not rub on the front running a 255/35-19. On the rear, 19x10.5 with a 60mm offset will not rub with 295/30-19. Some people prefer a tire with a little more meat on the sidewall. Anything below 3% is acceptable on the IS-F.
Holy Crap!!! You don't even know how much searching I have been doing to try and find someone who will verify which offsets on these wheel sizes will clear those exact tire sizes. I guess I didn't look back far enough.

I called HRE today to try and figure out what they recommend. They recommended those same sizes, but said that the exact wheel backspacing was proprietary information and would not be given out.

When you said that these sizes won't rub, did you test them under extreme cornering with max body roll? Also, if I went with a coilover setup later that lowered the ISF by about an inch, would these sizes still clear without any rubbing?
 

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Is anybody here running these size wheels, tires, and offsets? If so, can you confirm that this is the correct offset with no rubbing? Thanks in advance.
 

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Holy Crap!!! You don't even know how much searching I have been doing to try and find someone who will verify which offsets on these wheel sizes will clear those exact tire sizes. I guess I didn't look back far enough.

I called HRE today to try and figure out what they recommend. They recommended those same sizes, but said that the exact wheel backspacing was proprietary information and would not be given out.

When you said that these sizes won't rub, did you test them under extreme cornering with max body roll? Also, if I went with a coilover setup later that lowered the ISF by about an inch, would these sizes still clear without any rubbing?
Our fitment recommendations come from actual measurements taken from the F. Our fitments are also a little conservative so you should not experience any rubbing even under hard use.
 

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Thanks A Lot
 

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The sizes you list are certainly the closest to OE rolling diameter. I can tell you that a 19x9 with a 45mm offset will not rub on the front running a 255/35-19. On the rear, 19x10.5 with a 60mm offset will not rub with 295/30-19. Some people prefer a tire with a little more meat on the sidewall. Anything below 3% is acceptable on the IS-F.
Will these sized tires and wheels still fit without rubbing if a coilover suspension is used, lowering the car by an inch or less?
 

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Will these sized tires and wheels still fit without rubbing if a coilover suspension is used, lowering the car by an inch or less?
The rear will be a little tight as it is at the maximum fitment but you should be able to make it work. I suggest running a tire that runs a little smaller in size when compared to other brands. Just like shoes, tires can run larger or smaller in the same size.
 

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Given that most of us who are considering upgrading wheels/tires will run a drop, what offset do you recommend so that we don't rub? I would assume all of us are either rolling or cutting our rear fenders...
Peter

The rear will be a little tight as it is at the maximum fitment but you should be able to make it work. I suggest running a tire that runs a little smaller in size when compared to other brands. Just like shoes, tires can run larger or smaller in the same size.
 

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Given that most of us who are considering upgrading wheels/tires will run a drop, what offset do you recommend so that we don't rub? I would assume all of us are either rolling or cutting our rear fenders...
Peter
That depends on the use and tire set-up. Below is a quick referrance guide you can use.

FRONT
WHEEL WIDTH OFFSETS WIDTH OF TIRE
7.0 +16/+65 225
7.5 +22/+65 225/235
8.0 +29/+59 225/235/245
8.5 +35/+52 235/245/255
9.0 +41/+46 245/255/265

REAR
WHEEL WIDTH OFFSETS WIDTH OF TIRE
8.0 +26/+65 225/235/245
8.5 +33/+65 235/245/255
9.0 +39/+65 245/255/265
9.5 +45/+65 255/265/275
10.0 +52/+65 265/275/285
10.5 +58/+60 275/285/295

**USING WHEEL WITH OFFSETS HIGHER OR LOWER THAN SEEN
ABOVE COULD CAUSE INTERFERENCE WITH THE FENDERWELL
OR SUSPENSION COMPONENTS.
 

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So just to make sure I'm clear.....can I run the following without rubbing (assuming rear rolled fenders):

19x8.5f (+42 offset) with 245/35/19
19x10.5r (+59 offset) with 285/30/19

Peter
 

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So just to make sure I'm clear.....can I run the following without rubbing (assuming rear rolled fenders):

19x8.5f (+42 offset) with 245/35/19
19x10.5r (+59 offset) with 285/30/19

Peter
Edit:
Peter you are on the right track,

Wheel widths and offsets look good.

As for your tires, Yes the 245/35R19 and 285/30R19 would be great sizes to run.

Now that you are this far I would recommend calling the wheel manufacturer and asking them if the wheels you want will clear the brakes on your F. (We can do this for you if you would like.)

Lastly, PM us what you want and we'll be happy to see if we can get you the best price on it. We would love to earn your business.

-Travis
 

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Peter you are on the right track,

Wheel widths and offsets look good.

As for your tires, I would run a 245/40R19 and a 285/35R19 rear. I know the price of the 245/35R19 does look good but your tires and vehicle will be better balanced with the 245/40R19 and the 285/35R18 sizes. If you run the 245/35R19 you'll have some rake to the car. The 245/35R19 is a full inch shorter than the 285/35R19.

Now that you are this far I would recommend calling the wheel manufacturer and asking them if the wheels you want will clear the brakes on your F. (We can do this for you if you would like.)

Lastly, PM us what you want and we'll be happy to see if we can get you the best price on it. We would love to earn your business.

-Travis
Travis

I believe you're wrong and Peter is correct. 245/40/19 and 285/35/19 are too tall (1" larger in OD than the stock 225/40/19 and 255/35/19). 245/35/19 and 285/30/19 are the same OD and are spot on with the height of the stockers.

Lou
 

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Travis

I believe you're wrong and Peter is correct. 245/40/19 and 285/35/19 are too tall (1" larger in OD than the stock 225/40/19 and 255/35/19). 245/35/19 and 285/30/19 are the same OD and are spot on with the height of the stockers.

Lou
Good catch Lou, Sorry about that Peter. I got my numbers all screwed up there I must have been looking at 18" tires for you and writing 19's. I have edited my last post.
 

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Travis...ok, here is my new thought:

Front: 19x9 with +36 offset and 245/35/19
Rear: 19x10.5 with +51 offset and 295/30/19 (rolled rear fender)

I decided on 295/30 b/c that is the exact same diameter as the stock rear. Car will be lowered on Tein's (1.0f and 0.6r). Thoughts on clearance?

Peter
 

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So on stock rims would Front: 235/35/19 and Rear: 265/30/19 be ok? or would we need the same sidewall size as the OEM tires?
The sizes you listed will fit on your factory wheels but I do not see any matching tire sets available with the correct load index for your F. You should look into running size 245/35-19 in the front and size 275/30-19 in the rear.
 
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