Can I fit 35/12.5/17 tires on a 7.5" wide wheel?

oceanblue2019

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What's the harm in putting a 35x12.5R18 on a 7.5" wheel when it calls for 8.5" width wheel at a minimum...sounds like many people are doing this...is this a safety issue or will the tire not wear as properly?
If on too narrow of a rim you tend to get crowning and not even thread wear.

Most good tire shops will not mount a 35*12.5 on a 7.5" rim. They will mount 315/70's or 35*11.5 on a 7.5.





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llaslo

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So in looking at the specs for BFG T/A KO2 35x12.5x17, it recommends a rim between 7.5 & 11.5 (see screenshot).

Am I missing something? It seems like it would be in spec (at least for this mfg and tire).

BfgTires.png
 

llaslo

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So in looking at the specs for BFG T/A KO2 35x12.5x17, it recommends a rim between 7.5 & 11.5 (see screenshot).

Am I missing something? It seems like it would be in spec (at least for this mfg and tire).
Actually, in looking further, that screenshot was from Discount Tire site, but going straight to the BFG site, it is different.
BfgTires_Mfg.png
 

oceanblue2019

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Actually, in looking further, that screenshot was from Discount Tire site, but going straight to the BFG site, it is different.
BfgTires_Mfg.png
Check out the 315's as they are rated for a 7.5 wide rim and nearly the same size, some say they are the same just different labeling block.
 

Arterius2

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Check out the 315's as they are rated for a 7.5 wide rim and nearly the same size, some say they are the same just different labeling block.
It's not "some say"
It's "math".

Capture.PNG


Of course, there are variations between nominal measurement and actual measurement, and variations between brands, it's probably more helpful to look at the actual measurements in determining the dimensions of your tires.
 
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Jamrock

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Do you plan to drive your Jeep to remote places? Will some of these places be out of the range of cell phones? If so, don't do stuff like this.

Purchase some after market wheels or use a smaller tire. Don't be the guy who has to walk several miles to get help.

It is just not worth it.
 

oceanblue2019

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Do you plan to drive your Jeep to remote places? Will some of these places be out of the range of cell phones? If so, don't do stuff like this.

Purchase some after market wheels or use a smaller tire. Don't be the guy who has to walk several miles to get help.

It is just not worth it.
1) You have a spare wheel/tire
2) You have tools to change a tire
3) If going off the beaten trail you likely have an air compressor
4) You should be carrying a plug kit as well if going offroad

So why would you need to call someone?

If you are inclined to call road side assistance over a tire issue on or off road I really question why you want a Jeep?

This is the most stupid thing I've heard this week....
 

Jamrock

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Keep cutting corners on things like these and you will find out for yourself. Don't skimp on things like these and live on the edge.

Spend the money and get things done properly. Buy once, cry once.

If you don't understand that, I can't help you.

BTW... Dude lighten up. It is just a forum.
 
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Jamrock

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Actually, in looking further, that screenshot was from Discount Tire site, but going straight to the BFG site, it is different.
BfgTires_Mfg.png
Generally speaking, It is not a good idea to use equipment outside of the manufacturer's recommended specifications. It is safe to assume that the manufacturers have some amount of intelligence and know how their products work.

Some shops won't even mount tires this wide on wheels of that width. If you are going to use narrow wheels, find some narrow tires that are rated for the width of the wheels.

From what I have seen, many of the popular 35 tires are 12.50 wide. As a result, you may find yourself with fewer choices than people who use wider rims.

Life is ful of compromises.

Just remember... You don't want to have problems when you are 50 miles away from civilization.
 

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