Factory Wheels with Aftermarket Tire Thread

[SFD9]

Installed KO2 305/65/18’s today. No lift yet, on order.
no rubbing or trim required.
67mph at 65 indicated.

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[flynavy]

Any 2.7 folks in here? Leaning towards 295/70/18 ... trying to find a tire between 33-34 ish that won’t absolutely kill power and mileage. I hear conflicting opinions as far as gearing and engines.

 

[Cbaka27]

On my Lariat FX4 the only option I could pick was this wheel.

My tire size is the

Any idea if this wheel will support a larger tire and how much bigger I can go? I am a bit of a tire and wheel idiot so thanks in advance for the help.

BTW...They are going on a 21 PB 6.5bed Antimater Blue Crew FX4.

 

[85Mustangman]

Any 2.7 folks in here? Leaning towards 295/70/18 ... trying to find a tire between 33-34 ish that won’t absolutely kill power and mileage. I hear conflicting opinions as far as gearing and engines.

I'm in the same boat... 2.7 and my desire is some improvement in the factory wheels/ tires without a giant mileage penalty.

Not sure what you mean by killing power?... assume you just saying the extra weight of a larger/ heavier tire is a power penalty where the rubber meets the road?

I went with the 20" Chrome like PVD and 275/60 R20 OWL A/T. I understand most of these come from the factory with the Hankooks, and what I've seen on the lots are far from A/T!... pretty much streety tires if you ask me.

Looking for a manly-er set which I can convince the wife I need for a winter set!??

 

[Roger1108]

Installed KO2 305/65/18’s today. No lift yet, on order.
no rubbing or trim required.
67mph at 65 indicated.

On my Lariat FX4 the only option I could pick was this wheel.

My tire size is the

Any idea if this wheel will support a larger tire and how much bigger I can go? I am a bit of a tire and wheel idiot so thanks in advance for the help.

BTW...They are going on a 21 PB 6.5bed Antimater Blue Crew FX4.

I have the same problem of deciding which larger tire that would fit this rim? The stock OEM 18" rim, I read that it's a 7.5 width rim, another person said it's a 8.5 rim width?
Anyone that has a new 2021 f150 4 X 4, what width is the stock 275/65R18 AT tires on ? 7.5" or 8.5" rims?
Thank a lot for the information

 

[Cbaka27]

I have the same problem of deciding which larger tire that would fit this rim? The stock OEM 18" rim, I read that it's a 7.5 width rim, another person said it's a 8.5 rim width?
Anyone that has a new 2021 f150 4 X 4, what width is the stock 275/65R18 AT tires on ? 7.5" or 8.5" rims?
Thank a lot for the information

I may have an answer...I was just going through the 25ish page print-off my dealer provided with all the details of my build. It says ---Front and rear 18 x 7.5 wheels.

 

[Roger1108]

I may have an answer...I was just going through the 25ish page print-off my dealer provided with all the details of my build. It says ---Front and rear 18 x 7.5 wheels.

Thanks that's solid information on the 7.5" width, I know that their stamp the size on the backside of the rim. So what the largest tire that would fit on a 7.5 w - 18" Height rim? 285/70R18 at 33.2 in height? or 295/65R 18 at 33.1" H ... Stock size is 275/65R 18 tires at 32.0 in height.
Anyone can comment with no lift no rib?
Thank you for the info too!!

 

[Norris McCarty]

Use this site to make sure the tires you consider are ok on the 7.5” rim…… https://tiresize.com/chart/
Chain stores like Discount Tire will not mount tires on wheels outside of these width parameters.

 

[Mike505]

I think it appears quite level now—— does yours have FX4 package? If not that might give different results

thanks. another question. i am leaning towards the readylift 2”. i’ve seen some trucks with this appear to have a little bit of a bro lean. would you say your truck is exactly level or does the front appear to be a bit higher than the back now?

 

[Roger1108]

Use this site to make sure the tires you consider are ok on the 7.5” rim…… https://tiresize.com/chart/
Chain stores like Discount Tire will not mount tires on wheels outside of these width parameters.
[/QUOT

Use this site to make sure the tires you consider are ok on the 7.5” rim…… https://tiresize.com/chart/
Chain stores like Discount Tire will not mount tires on wheels outside of these width parameters.

Use this site to make sure the tires you consider are ok on the 7.5” rim…… https://tiresize.com/chart/
Chain stores like Discount Tire will not mount tires on wheels outside of these width parameters.

I stand corrected, 2021 F150 has stock 8.5 rims with 275/65R 18 stock tires
Zyvin was the person that corrected me, here what he showed me. Check it out.
https://www.f150gen14.com/forum/threads/stock-wheel-offset-44-mm-size-18x8-5.1017/

 

[Roger1108]

Thanks that's solid information on the 7.5" width, I know that their stamp the size on the backside of the rim. So what the largest tire that would fit on a 7.5 w - 18" Height rim? 285/70R18 at 33.2 in height? or 295/65R 18 at 33.1" H ... Stock size is 275/65R 18 tires at 32.0 in height.
Anyone can comment with no lift no rib?
Thank you for the info too!!

Here is what Zyvin said 8.5 stock rims, he correct, look at this
https://www.f150gen14.com/forum/threads/stock-wheel-offset-44-mm-size-18x8-5.1017/

 

[Cbaka27]

Here is what Zyvin said 8.5 stock rims, he correct, look at this
https://www.f150gen14.com/forum/threads/stock-wheel-offset-44-mm-size-18x8-5.1017/

That's a different wheel and tire than mine. Mine is a 18 x 7.5 wheel.

 

[Norris McCarty]

The chrome Lariat(and maybe XLT) wheel is indeed a 18X7.5. The machined aluminum is 8.5 wide.
The 7.5” wheel came on my Lariat, Chrome Pkg, FX4.

 

[Lex_310]

Anyone else running 275 70 18 without a lift or level on A stock FX4? Thinking about going up just one size without having to level in the meantime.

 

[Roger1108]

That's a different wheel and tire than mine. Mine is a 18 x 7.5 wheel.

Thank you for the correction, my mistake on type of rims. I getting a different rim than stated.

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