I'd like to shoot the guy who came up with aspect ratio and all the other tire measurements that make choosing tires so confusing. My goal is to get the largest tire I can with an aggressive off road look with the stock 18" rims as this vehicle is an everyday driving. Oh and if possible, not too much road noise on the highway. I have an Old Man Emu 2" lift.

Just reading the forums I have seen these as options:
- a 275-65-18 or a 265-65-18, BFG AT K/O tire, it comes out to approximately 32" tire

OR

TOYO Open Country M/T LT275/70R18 125P E10 (apparently I need to do some trimming with this one but man it looked good on the picture)

Any suggestions or other options?

 

I just got a set of Nitto Terra Grapplers. Size 255/60-18. They look great! I don't have them on the car yet, but can imagine they will look better on the car than they do piled up in the back of the car. They are a 30" tire, which seems to be smaller than what you're looking for.

 

Tire Sizing is simple, just multiply the section width (255mm) by the aspect ratio (.60) to get the sidewall height for 1 sidewall. Multiply that number by 2 (because a tire has a lower sidewall and an upper sidewall), then convert that to inches by dividing by 25.4, then add the wheel diameter (18"). Should come out to about 30.04 inches.

 

All sounds great, but are you prepared for the loss of power and torque along with about a 1.5 MPG beating.
When going large, you need a lift, gears and lockers to make it right.

 

Well quite frankly no I am not prepared for loss of power torque and gas mileage. I guess thats why I post here because those are things I had not considered. So if I am trying to get something more aggressive looking without going overboard and considering I have a 2" lift on now, what what would you look at in terms of tire size without having to regear.

 

Put on an electric, thermostat-controlled fan and you might break even. Still looking for ultra-high-rolling-resistance MTs

 

That won't correct an over size tire hit for mileage, torque and gas mileage.

 

If you want quiet you dont want a M/T.
You also do not want a M/T for snow and ice.
You want a A/T.
The Toyo Open Country A/T is a great tire, I had them before and they are a great all around tire.

 

The following are the sizes and overall diameter that the Toyo Open Country AT II come in. I am leaning toward either the P265/60R18 109T with diameter 30.5 OR LT275/65R18 123/120S E/10 32.1. I think the 32.1 diameter will put me in the bad gas mileage torque issues. I guess the stock 255/55 I have now is 29 inches so with the the 30.5 diameter tire is only an inch and half difference and will hopefully complement the 2 inch lift and not make enough of a difference in terms of mileage and gearing. Am I looking at this right.



255/55R18 109H XL 29
P255/70R18 112T 32.1
P265/60R18 109T 30.5
P265/65R18 112S 31.5
P265/70R18 114S 32.6
P275/65R18 114T 32.1
LT275/65R18 123/120S E/10 32.1
LT275/65R18 123/120S E/10** 32.1
LT275/65R18 113/110T C/6** 32.1
LT275/65R18 113/110T C/6 32.1
LT275/70R18 125/122S E/10 33.2
LT275/70R18 125/122S E/10** 33.2
285/60R18 120S XL 31.5
LT285/65R18 125/122S E/10 32.6
LT285/75R18 129/126S E/10 34.8
LT325/60R18 124/121S E/10 33.3
35X12.50R18LT 123R E/10 34.5

 

In my humble opinion you are over thinking it, find a good tire that you like and can afford.
Any aggressive tire is going to reduce MPG some, its the rolling resistance thats got you there.
Tire Rack - Your performance experts for tires and wheels is the place I go to find tire reviews, they actually test and review each tire as well as post reviews from people who have bought them.
Just do not enter your type of vehicle, enter the tire size.
I had a really good experience with the Toyo Open Country A/T, I have also had a good experience with the Cooper Discoverer S/T which is what I currently have.
I have had bad experiences with the BFG A/T and A/T KO.
The more aggressive the tread the nosier it will be.
The Hanook Dynapro ATM RF-10 is supposed to be a great tire, I have seriously considered it myself.